Hi,
Interested in people's thoughts regarding wing board design - specifically bottom design. There are about to be a heap of new production wingboards coming out , and I am also considering a custom if I don't see the dims or features I like.

Specifically my question relates to double concaves in the nose and bottom. I am seeing boards coming through with these. Can anyone offer an educated view on whether bottom concaves help or hinder in the following two key areas , vs a flat nose / bottom profile:

- ease of unsticking from the water
- forgiveness in high speed touchdowns eg after dropping down a large swell / wave

I have read two totally different opinions on double concaves for foil boards - the first is that they make the board sticky which takes more effort to pump it up onto the foil , and the second is that it allows air under the board and helps it to unstick. Both of these cannot be right as they are opposite !!!

Similarly , does a simple flat bottom profile allow for more forgiving touchdowns ( touch and go without lurching) than a nose with double concaves?

Could be that there is a trade-off or compromise to be made between the two ie one design starts easier but the other is better for touchdowns.

My suspicion is that double concaves for wingboards may just be fashion, or might be drawn from prone foilboard designs (eg KT) which have the benefit of wave power to get them flying. This is not the same situation as using wind power to unstick a board from flat water. It might also be the usual board design voodoo where most things actually work to some extent and every board designer has their own slant, but I'm more interested in the science - I want a board that will unstick easily and be very forgiving in high speed touchdowns. Hard to compare and contrast different designs before you buy these days .

Interested in your thoughts .....