I made a little video on how to improve the windrange of most wave sails. For example the older Witchcraft sails up to 2026 but it will work even better on sails of other brands that are cut flat. This is done by giving the middle 2 or 3 battens a bit more taper by sanding the batten tips down to 1.6mm. You should not touch the top batten. The foot batten can be done a bit as well but 1.8mm is enough. This has given a noticable increase in windrange of both the Karma and Slayer.
However, for sails that are cut flat or nearly flat (meaning they are flat or nearly flat when lying down, which is the case with most wave sails), this will increase the wind range even more. Flat sails need more windpower to bend the battens into shape to throw profile and depend on batten taper alone for their profile stability.
With more batten taper, you will need less wind to throw the profile and at the top end range, the sail will have more profile stability. It will be smoother and easier to find the angle of attack. Also batten rotation becomes softer when flipping the sail.
We found that most battens don´t go thinner than 2m 2,5 or even 2.8mm. To illustrate how effective that is: The stiffness of a profile relates to the 3rd exponent of the thickness, so just this little bit makes a big difference. 1.6mm is already twice as flexible than 2mm (1.6³= 4.096 and 2³= 8) Meaning that you will need half the wind strength to throw the same profile depth, which is right when you need it most. 1.6mm is more than 3 times as easy to bend than 2.5mm (2.5³= 15.6).
By pulling out a batten you can check how it bends. Compare this to the image in the video. Like this you can judge whether it should have more taper. Most of the time it will. You can sand the batten tips down to 1.6mm (without shrinking tube). This is still enough to easily support the batten tension. Before sanding, remove the plastic tip and the shrinking tube. Then, on a flat surface, sand the tims gradually thinner with a sanding block, on both sides of the batten. Follow the original taper. The length of the taper can also become a bit longer. Do one batten first and compare this with another batten. Be careful with the fine sharp glass splinters. When you think you have the right taper, you can either spray the sanded part with spray paint or put electrical tape length wise, over the plastic tip and back up the other side. You can rig the sail and see how it sets. If you have an old sail with good battens, you can also try it with them. Like this you can always compare with the original battens. I have done this on sails of various brands, for example if they had broken battens and I needed to custom shape new battens from a straight round rod. Afterwards the customers came back and said their sail worked better. After explaining, they asked to do their other sails as well. Let us know in the comments if you did and how did it work out or if you have any questions.

We have made a new Rigging Manual on how to rig the Karma and Slayer.
https://witchcraft.nu/sails/rigging-manual/

If you want to reduce strain on your your joints and keep sailing with increasing age, sailing with optimally tailored equipment will make the difference. Let`s have a look on setting the right “gear”.

As windsurfers, we can’t shift gears on the fly, like drivers or cyclists. Instead, we have to “pre-set” our gear on the beach before heading out.

Understanding how your sail, board, and fin setups work together changes everything. For instance, you can rig a smaller sail full (baggy) or a larger sail flat to generate a similar amount of initial power. But what is the practical difference, and which setup is right for you?

An easy way to visualize this is a 5-speed bicycle:

1st Gear (Easy Start): Effortless to pedal, but top speed is low. It excels uphill or against strong resistance. In windsurfing: A smaller sail with far less leverage rigged full.

5th Gear (High Speed): Requires massive physical effort to start moving, but once you gain momentum, your top speed potential is high. In windsurfing: A larger sail with a lot of leverage rigged flat.

THE 5 WINDSURFING GEARS (with Witchcraft Sails and Boards matching examples) – using the analogy of bicycle gears to optimize your rig

Gear 1: The Entry Level           

Gear 2: The Comfort Cruiser

Setup: Small sail rigged full, but with slightly more downhaul for a touch of loose leech. Characteristics: Early planing at lower speeds. Ideal for intermediates learning waterstarts, straps, and power jibes—or older windsurfers avoiding harsh chop impacts. Slower speeds keep everything soft and forgiving. Board & Fin Setup: Needs an early-planing hull paired with thicker-profiled fins to maintain upwind drive at low speeds. Recommended Witchcraft Setup: A larger Chakra (straps inboard) with larger side fins and a moderate center fin. Sail: Karma (for maximum profile stability). he Mainstream option: Early planing Freeride boards with inboard/forward strap option. Traditional high-speed freeride boards feature locked, outboard straps requiring high sail power and fin drive. Without this constant drive, an outboard setup tilts windward, forcing an awkward stance as soon as you sheet out.

Gear 3: The All-Rounder (Bump & Jump / Intermediate Wave)

Setup: Medium-size sail, rigged medium-full with moderate loose leach. Characteristics: Balanced performance. Fast enough for controlled jumps and soft landings, carving small waves, and easy maneuvering without high physical strain. Recommended Witchcraft Setup: Chakra, Shaman, Haka, or a larger Reaper with thicker-profiled fins. Sail: Karma (B&J, onshore/heavier riders) or Slayer (sideshore/lighter riders). Freeride boards with medium inboard strap positions and a thicker not too big fin can also work for flat water.

Gear 4: The Action Wave Setup

Gear 5: The Pro Level

CHOOSING YOUR SAIL DESIGN – PRECISION PRE-SHAPE VS. FLAT-CUT

When looking at a sail lying rigged on the beach, you will notice two distinct design approaches across the industry with not much in between:

TRUTH ABOUT PROFILES: Why built in Pre-shape win

While much of the mainstream industry relies on heavy downhaul tension, high skin pressure, and batten rotation to bend flatter sails into shape under wind load, a hybrid approach using both built-in seam shaping (broad seaming) combined with a small amount of batten rotation, offers 6 distinct physical advantages:

1. Instant Aerodynamic Lift: Like a curved airplane wing, a pre-shaped profile creates immediate lift the moment wind passes over it, without waiting for wind pressure to form the rig.
2. Effortless Low-End Power: You don’t waste precious wind energy trying to force stiff battens into a baggy profile.
3. Draft Stability Under Load: Under heavy gusts, batten rotation dependent sails tend to shift their draft backward. Built-in pre-shape locks the maximum draft forward (around 18-25% static, shifting to an ideal 30–35% under load), keeping control effortless.
4. Smoother Batten Rotation: Since batten tips don’t need to poke aggressively past the mast to create shape, the sail rotates smoothly from tack to tack.
5. Forgiving Angle of Attack: A more curved leading edge makes power delivery smooth and progressive rather than sensitive.
6. Lower Leverage & Weight: Because a pre-shaped sail generates more lift per square meter, you can ride a smaller sail size with a shorter boom—improving handling and reducing leverage and fatigue on your body.

CHOOSING YOUR FIN SETUP: PROFILE THICKNESS & TWIST

The hydrodynamic principle of fins is the same as with sails. However, unlike sails, fin profiles are fixed. Mainstream trends often push thinner profiles for raw top speed. However, like with sails, for real-world wave and freeride conditions, profile thickness is a strategic choice:

Thick, Forward-Oriented Profiles (The Witchcraft Way):

Why: They handle large angles of attack without stalling, providing instant low-speed lift and dependable grip in tight, hard turns.

The Trade-off: At cruising and wave-riding speeds, a smaller, thicker fin creates similar drag than a larger, thin fin—but gives you more control, maneuverability and predictability in Gears 1, 2, 3, and big wave scenarios.

Thinner, Centered Profiles:

Why: Optimized for high-speed sailing (Gear 5). They require higher board speed before you can fully load them with foot pressure without spinning out.

Swept-Back (Raked) vs. Straight Fins:

Raked fins allow the tip to twist under pressure, automatically adapting high angles of attack for a forgiving, smooth turn. Just like a twisting sail can release excess pressure.
Upright fins offer a little better upwind efficiency, but can spin out suddenly when pushed past their limit.

SPECIAL APPLICATION: FLOAT AND RIDE WAVE SAILING

Float-and-ride conditions (light side to side off shore surface wind with big waves) present a unique dilemma: you need Gear 1–3 power to slog out through lulls, but Gear 4–5 neutrality to stay agile on the wave face.

How the Slayer Bridges the Gap

Flat-cut sails can feel neutral on a wave, but they struggle to get you out through the impact zone in light wind. The Witchcraft Slayer solves this with Dynamic Pre-Shape:

Slogging Out: A flexible Dacron luff panel combined with a 4-batten layout allows wind pressure to instantly expand the profile, giving you early planing power. This more flexible profile does cost a bit of wind range compared to the more stable Karma.

On the Wave Face: The moment you sheet out down the line, the elastic Dacron panel releases its tension. The battens naturally turn back to their neutral, flat state, returning the sail to a drag-free profile.

Paired with a board like the Witchcraft Wave V5/V6 (engineered with extra volume in a narrower outline for slogging without losing rail control), or a custom Flex Tail this setup lets you downsize your sail, saving physical energy and surviving the impact zone much easier. The special shape with inverted V, progressive rails, pre-twist fins and parabolic rockerline, gives the best drive on the wave. People have said that it feels like you accelerate through the turn.

FINDING YOUR COMFORT ZONE: WINDSURFING FOR LIFE

In recent years, many windsurfers added wingfoiling to their quiver or switched completely, often for logical reasons: it handles light winds effortlessly and cruises in a relaxed, low-impact speed bracket (15–20 knots) without beating up your joints in heavy chop.

Meanwhile, traditional windsurf marketing kept pushing the “higher, faster, harder” extreme of Gears 4 and 5, leaving a massive gap for anyone looking for efficient, low-effort sessions in marginal conditions.

The reality is: Light-wind efficiency and high comfort are not exclusive to for instance foiling. It is as well a matter of the setup of your equipment.

By intentionally setting up your gear for Gears 2 and 3, combining early-planing hulls, high-lift fin profiles, and pre-shaped sails that generate power without extreme downhaul, you drastically lower the required wind threshold and physical strain, you get early planing, easy handling in chop, and maximum time on the water.

Whether you foil or sail, understanding how to tune your windsurf equipment for these lower gears gives you complete control over how hard you work on the water and keeps windsurfing a top-tier option for any wind conditions.

Take our experience as a foundation and make it your own. You are welcome to test our equipment for yourself at our Test Centre on Fuerteventura, or get free advice from Bouke and book a session to test it out at TWS on Tenerife.

      Author: Bouke Becker

✉️:      info@witchcraft.nu

📷: https://www.instagram.com/witchcraft_windsurfing_/

📘: https://www.facebook.com/Witchcraft.Windsurfing

The padded inserts of the straps are now also available separately as spare parts– in either neoprene or EVA. This allows you to replace only the inner part when it’s worn out, without having to replace the entire strap. You can also switch between them depending on the season: neoprene for better grip in summer, EVA for comfort with shoes in winter, Neoprene for more grip when sailing bare footed in summer.
Webshop

prepare yourself for years to come. As we get ready for next year and begin restocking, we would like to offer you the opportunity to pre-order our Witchcraft HD 32cm carbon mast extension with 25% discount.
The strongest extension available at 492grs and  2‑year guarantee.
The deadline to place an order is the 31^st of December, the delivery will follow the end of February.
For more technical info: https://witchcraft.nu/accesoires/carbon-extension-hd/
To order: https://witchcraft.nu/product/pre-order-mast-extension/

It’s that time again! We want to sweeten your summer with a hot offer: new sails coming for the 2026 season!
A quick reminder for those who haven’t tested a Witchcraft sail yet: With our sails, you can comfortably ride one size smaller than you’re used to from other brands. Been rigging a 5.0 before? With Witchcraft, you’ll be totally happy on a 4.7. That’s thanks to the fine-tuned shape of each size and our focused, purposeful construction. The design has been really well received—and even here, with the steady, familiar color scheme, we’re delivering calm and consistency.
The sails keep on surprising people, a local sailor who recently tested the Slayer 5.2 at Glass Beach said: Yes very good, powerful, very good handling with the shorter boom and he said it is less tiring to use.

Feedback like this motivates us and confirms we’re on the right path with the Witchcraft sail series. While the market keeps consolidating, we’re staying strong, independent, and grounded. We leave the “Higher – Faster – Further” mantra to the others and keep our eyes on what truly matters: Refining our boards and sails, offering solid masts and extensions, and pushing innovation in foot straps and fins.
Bonus treat: Buy a 3-pack combo + (sails + masts) and get a free Witchcraft tee in your chosen size!
Don’t miss our current offer on the new SR fins (The pre twisted Witchcraft fins adapted to the angles and systems in other brands boxes). We’ve got another order yet — pre-order now to lock in the lower price.
So…hang loose, stay stoked, and hit us up by email with the subject line: Pre-order. See the website for the pricing of the Karma and the Slayer. Orders to be submitted by email to: info@witchcraft.nu

We have another pre order period for the pretwisted SR fins again. Available with Minituttle base or Slotbox, with 4.3° angle for boards with paralel finboxes, 3.5° angle for boards with 0.8 to 1° angle (fx Duotone) or 2.5° angle for boards with 1.8° angle in the boxes (fx Simmer). With the greatly reduced drag, improved drive and more natural and tighter turning, you can choose bigger side fins and a (much) smaller centre fin, which gives much more control and maneuvrability with still at least equal up wind ability. We keep getting amazing feedback from customers how much these improved their board. Read more on the how and why behind these fins here: https://witchcraft.nu/boards/trifin/

As there are many variations with the different fin systems, angles and fin sizes, it is impossible to keep a large stock of them all so it is adviced to pre-order these fins. You can order by email to info@witchcraft.nu. Deadline 1st of August 2025. For pricing look here: https://witchcraft.nu/accesoires/fins/ We advice the Witchcraft centre fins for the trailing fin(s) to have all fins working optimally together with the same profile and twist properties. Check the Witchcraft board ranges for choosing the optimal sizes for your board. K4 fins has a toe-in calculator tool on their website to check the angle of your board if not paralel.

A proper WAVE sail is reinforced in the places with high loads. Here is a perfect example of the point loads at the end of the battens when landing a back loop. Where wrinkles show up, there are point loads. If the leach and the end of the batten pockets are made strong enough locally, no problem. Even if the bigger part of the upper leach is made with lighter materials, if the leach holds up, the whole sail will hold up.

It costs a little bit more material, labor and adds a tiny bit of weight. But then the whole sail will last a lot longer, it does not rip clean in half when landing a back loop, as we´ve seen with “Wave” sails, nor does the sail overstretch prematurely. A properly built sail is beneficial for your sailing as the sail stays fresh for longer and less risk of missing sessions due to equipment failure, your wallet and the environment.

And this is just landing a back loop which can cause a sail to rip in half, when getting washed by waves, forces can be much higher.

Also battens spread the load over the X-ply. You can see the wrinkles only appear between the battens. So the more battens, the longer the sail will last. Plus a sail with less battens suffers more from broken battens. From our experience, 3 batten sails suffer 3 times as much from broken battens than 4 batten sails.

We now also offer our famous straps with a Neoprene cover for people who prefer the feel of Neoprene. For barefooted sailors, the neoprene offers more grip to not come out of the straps during aerial maneuvers unwantingly. See here for more info: https://witchcraft.nu/accesoires/footstraps/