For some reason, many people are under the very wrong impression that great aerobatic machines should be twitchy and unstable. Not to mention difficult to fly.I put it down to a natural learning curve/ego flexing etc etc. Point is...NOTHING could be further from the truth. My F3A planes are so, so gentle and forgiving to fly, they'd work fine as a trainer. As would the big 33% IMAC's... so gentle and smooth they're marvelous. Unlike the smaller versions which become stroppy little b#stards the smaller they get. Believe me, if you have a plane thats a snappy, unruly little MF you've wasting so much time fighting it. A great designed plane will allow you to do a GREAT deal of adjustment both with the CG and Throws without as much as a bite. This'll allow you to concentrate on the aerobatics instead of constantly worring about what the planes going to do. As said many time, your need a plane that flys with you... and not against you.