The Slayer is a 4 batten wave sail. 

The Slayer was born for wave sailing and riding. It is quite unique with a morphing seam shape through the range, with each size up, seam shape increases slightly to allow you to take a smaller big size. Where the smaller sizes are flatter to handle high winds better.  Seam shape increases the windrange, it gives more low end power but also stabilizes the shape to give maximum control in high winds or when bottom turning. The dacron luff panel and PVC window gives a softer feel with the ability to go neutral allowing the rider to concentrate on the wave and not the sail.  The aspect ratio has been increased on the bigger sizes to put more powr in the rail of the board in the bottom turn and to keep the boom shorter and gives more room to maneouvre the sail, to be able to lean it more into the turn without having to change its angle, allowing to make tighter turns and get closer to the lip. As luff length is more important than plain area, higher aspect sails are more efficient so you can rig around 0.3 to 0.5m² smaller than with other brands. The Slayer has the centre of effort located higher and forwards, placing the rider into a more upright, manoeuvre-oriented position and moving the sail around in turns has more effect.
Like where motocross has moved away from the more direct but too nervous 2 stroke engines to 4 stroke engines, we wanted the sails power delivery to be very smooth to be able to concentrate on the wave. In its fuller setting, the Slayer is very powerful but the power delivery is very smooth. Set flatter, it becomes more direct, yet still smooth and stable.

As we are very experienced sail repairers as well, we can safely say that you will not be able to find a better built sail. The sail is built to handle getting washed by waves, without ripping or overstretching and loosing it´s crisp feel. A sail that keeps its shape feels lighter than a physical light sail that can´t keep its shape as well, either because its overstretched, less seam shape or because of less battens.

-bigger wind range
-can be set very grunty for float n ride conditions
-smooth power delivery
-More drive and control in the bottom turn
-Tighter turns
-Highest durability with average weight

The Slayer is best paired with the more dedicated wave boards like our Wave, Haka or Reaper or similar boards from other brands. test november 2018 on the Slayer 5.0:

This is the first opportunity we have had to test a Witchcraft sail, and have to say we were mightily impressed with the Slayer´s vast tuning range, employing both rotation and seam shaping to significantly alters its character between its various “sets”.

Rigged on one of the brand’s Broomstick 90% masts and set for light airs, the Slayer requires minimal downhaul and only a little outhaul (in Bouke’s own words: “The sails like it to be rigged “bad”!”). The bottom two battens retain rotation around the mast, whilst the draft displays a deep profile placed high and forwards, the leech remaining relatively tight along its length. On the water this forced shape is soon increased further as the wind fills, allowing the excess luff sleeve and Dacron luff panel to deepen the draft’s camber. So much so in fact that the sail bags out to hit the other side of the boom, particularly if you have a narrow profiled boom. As a result the bottom end grunt generated by the Slayer is impressive – the delivery soft and manageable thanks to the luff panel, yet the sail feeling firm and punchy in the hands – the mast flexing and surging forwards with every well-timed pump. A masterful weapon for float and ride, it can get you out into the line-up quickly, before feeling compact and balanced in transition, with a dynamic measured response. It doesn’t go completely neutral as it’s eased out, yet the softness and balance of the power allows it to be used to good effect, driving positively through the turn. As the wind increases, the sail’s set can be revisited, an increase in tension pulling the battens away from the mast to reduce, even annul rotation, whilst the pre-shape in the seam remains present. With less depth or breathability, the nature of the sail’s feedback is altered, becoming more direct and crisp in response, although the profile remains reassuringly stable, the leech twisting off to circumvent erratic gusts. Interestingly, the reference setting for the outhaul is to use both clew eyelets, fixing the boom right in the middle. From there, you can adjust according to conditions or preference – a micro-refinement in an otherwise vast tuning range. 

The Slayer has a massive tuning range, altering its delivery style dramatically along the way. Smooth dependable power combined with stunning stability and real handling ease, it puts functionality and durability at the fore rather than any superficial niceties.

Windsurf Journal (Germany) on the Slayer 5.0 2017:

“The rigging range of the Slayer is very variable, it always requires some downhaul but it can be sailed pretty full but also flatter. The deep shape gives the Slayer a lot of drive to get planing early. It´s softer character helps when sailing through chop or also bigger waves. The control at the top end is wunderfull in the flatter setting but it likes to be adjusted at the boom a bit as well, then it can deliver a lot of fun for demanding sailors. It can be leaned into the turn quickly, offers drive but also can be neutralised.”

“Summary: The Slayer is a really good sail, which can claim to be included in the elite circle of the absolute allround 4 batten sails. Even if the Slayer does not reach absolute top results because of its slightly higher weight. But this robust sail is probably still looking better after 10 years of full sunshine than many high-tech sail after 3 months at the North Sea”


Tested in heavy shorebreaks!


sizeluff*Recommended BroomstickAltern. Broomstick or const. flex mastboom*weight*R.R.P.
3,7365-367 (vario)370 top + 340 base370140-1473,25674 €
4,0374-376370 top + 340 base370142-1493,30686 €
4,2388-390370370145-1533,30691 €
4,5404-406400 top + 370 base400148-1573,45702 €
4,7410-412400400154-1623,55712 €
5,0419-422400400162-1703,62725 €
5,2429.5-432430 top + 400 base400164-1723,70738 €
5,5441.5-444430430169-1773,80752 €
5,8452.5-455430430173-1814,00767 €
6,1459-461430430180-1884,12784 €

Due to the efficient high aspect ratio, the sails can/have to be rigged from 0.3 to 0.7m² smaller.

*no garantee of accuracy