I highly recommend a Phoenix models FUNSTAR 40 with a Thunder Tiger 46 Pro and a MACs muffler. Truly unlimited vertical. The plane is very light and is built pretty good. About the only thing you have to do to it is double bevel the elevator as it is not done already. Easy task. It flies better than the twist and is more 3D capable. I liked it much better than the Funtana. Lighter on its feet. And it is 100 bucks. A TT 46 with MAC muffler will be about 125 plus 100 bucks for the plane and 100 buck for a flight pack and you have a 3D machine for less than 350. I liked it so much as did everyone else that 2 other people bought one.