I wouldn't say unstable as Ive had 33,5 knots on my 6,0 cheetah quite a few times but the lion is a quicker 6,0 got one of those too ,but they do de power quick as they are a free ride sail but still a great sail in rough water ,
But a 3 cam sail will have more top end and constant speed ,as to when you see a gust you are already flying and grab that gust and head down wind ,it will also have the belly to accommodate the extra wind catch to get a better speed .Don't forget let the sail out a bit when you head down wind .

Its a great size for wanting to bust the 30 knot barrier

I hope you get your 30 + knots ,