I started with the 60 size -- read the story here: http://www.rcuniverse.com/forum/m_89.../tm.htm#897551

The Stik is really docile -- but can do most IMAC figures if you dial up the throws. I also agree with B.L.E -- they are hard to snap. There is a small amount of dihedral and again I agree with B.L.E., they won't right themselves as readily as a flat bottom, big dihedral trainer, but if you keep the throws down and keep it gentle, you should be just fine.

Mark