i second the 82, lots of power.....i just flew my mojo for its maiden flight today with a os46 with tower pipe and this plane rocks!!!! i even hit the ice fairly hard with a dumb thumb move with absolutely no damage. this bird is tuff and light, mine came in at 3lbs and 14oz .....i chose the the os46 over the 82 (i have 2, accell katana and the twist) because its a very thirsty engine, and with the 6 oz fuel tank, the flights would be very short with the saito, so i opted for the 2 stroker, it still pulls from a hover well but not with the athority the 82 is known for......just something to consider