Help me decide - aerobatic second plane
I'm gonna go with Razor.
#1 4*40 One of the easiest kits around to build.
#2 Sig SE, as long as the throws are fairly low and the CG is a little forward, it is a pretty good second plane. Watch the throws, you have been warned!
The Easy Sport is not any tougher than a trainer. The Dazzler isn't any better than the SE. UCD is expensive after the engine and flight pack.