i just bought a brand new yamaha 15 and as soo as i hit choppy water or even when i rev it i little too high the floor boars on my 3.6m inflatable bend slightly and it just ventilates. and it overevs and just falls off the plane. has anyone else fitted stability plates or hyro foils or "lifters" ive seen adverised. if so, do they they work? and does anyone have any problems with ventilation? advice thanx

Try adjusting the trim of the outboard, it can make a difference.

I put a hydrafoil on my 12 ft Zodiac and eliminated the problem. It planes out much faster too.