I have had a lot of planes over the years and like to 3d. Small nitro biplanes are very hard to hover but stunt very well. They are box like and have a fast roll and tumble rate. If you want to 3d don't get a small biplane. Also I would not recommend a ultimate type bype for a beginner because it is easy to loose the orientation of the plane compared to a single wing. I did fly a small electric biplane that could hover. As far as a slow flying 3d capable plane I would highly recommend a 60 size u can do from great planes. It flies great and slows down like a kite. You can just as easily be tought (that's the key buddy box with a instructor) on that plane as you could a trainer. Reinforce the gear mount or you will rip the gear out eventually. That is it's only weak spot. Good luck.