OUTCAST is right. A guy in my club flys a Sig Senior (big slow trainer for those of you who don't know) and can do all the standard maneuvers and make it look good. Four point roll, rolling circle, whatever. His plane is powered by a 90-4C and is set-up perfectly. BTW, it's much more difficult to set-up a trainer to do aerobatics than an aerobatic plane. Why does he do it? He enjoys flying close-in at low altitude. He calls is slow aerobatics.

Point is this, most r/c planes will fly very well if set-up properly. I'm going through the process right now on my little GP Extra. What a huge difference it makes.