Sorry deejay, you have waaaaaaay more 'sperience with small boats and OBs than me, but do you really think that a relatively massive batwing, surface piercing, horizontally debilitating, stern jacking, trim altering, hydrofoil "stabiliser" is doing anything but slowing down a 5 bhp OB?
I actually have no experience with kickers etc. I do have a 5 bhp OB on a 14 ft. aluminum boat that does plane. It is also very trim sensitive, so I can't see how sumpin' like that could be anything but . . . uhhhhh . . . weird. I should do some testing, but I'm a) skeered and b) not sure how I could hide that wing while launching :$ 8)
I know they work on some stuff, some times . . .
tommays, you should suggest them to your sailboat racing friends, I'm sure they'd help those too . . . Why not? It worked for Australia II . . .