RE: Scale Aerobatic Second Plane
I went with a VectorFlight 58" Extra for my second plane after flying an Avistar last year.
I followed the advice from other people who'd flown this plane and its 66" sister and was careful about lateral balance, elevator halves matching throws (and limiting their throws) and have had no trouble with snaps or anything else.
Awesome, fun, beautiful plane. And it can take me a lot farther, performance/aerobatics-wise, than some classic 2nd plane.
-Greg
P.S. VectorFlight has all of their planes on sale right now...