I've always used the baseball bat method, but haven't had to do it on my 200sx. If I had to, I would definitely go out and buy a cheap wooden bat, and throw it away afterwards. Looks great, no ripples or creases, and doesn't take very long at all to do. Just DON'T use fiberglass, or metal bats. They don't work worth a damn, and can actually cause the ripple effect.