Select to expand quote
Bennis123 said..
So I was out in about 22 knots with my 3,5m wing and Axis 999 foil. I didn't feel over rigged on the foil and also feel I need about this size to ride the local wind chop(no real swell).
I see many people opting for smaller foils when the wind gets stronger. Is this to get higher top speeds or is it to keep the foil down riding larger waves?
There is typically much less load on your sail+arms with a lower drag foil set. The foil speed means more options and easier to coast fast and connect waves or wind gusts. You only need a tiny amount of wind power to keep a low drag foil-set going quite quickly, so much less need to pump your foils/legs. Lower drag foils can make light winds much easier, assuming you can get up and stay up. One problem is being too fast for the waves, so you might need the fast foils to be able to turn (eg. lower aspect, thinner tips, short fuselage, stiff mast). Use the speed up when you don't want it, doing more distance by snaking your path. The other problem (mentioned) is getting up on the low drag foil. I've found that a board shape designed for fast surface planing helps greatly. No "tail kick" or excessive rear rocker.
In other words, a lower drag foil can offer more fun, more options and is much less fatiguing.
Also consider that a foil which pumps well, will most often be pitch unstable at its higher speeds. Pitch instability at speed is very fatiguing, for me at least. A foil like the W1000 with a suitable stabiliser doesn't pump super well, but while doing 10 kts or 25 kts you can maintain similar front/rear foot pressure and be quite relaxed. The Naish 914 is also very well behaved if speed varies greatly. If your 999 pumps well, then you'll probably enjoy something else when speeds are higher.