I used to do it with my trainer an Xtra Easy. You have to take all the dihedral out of the wing, move the cg really far back, and increase the throws and it'll barely do it. I broke the tail off my plane doing spins so I'd recommend not doing it. If you want to do aerobatics buy an aerobatic plane. If you can do what you say you can do, then you are definatly ready for one.