I am really enjoying my Great Planes Super Skybolt with OS 75 AX. It took a few flights to get the hang of a bipe, though. It takes up some runway to land if there is little to no breeze. Comes in a bit hot compared to my 30cc Sbach. That bipe is a lot of fun and an easy assembly. Some good info here on it, too. Too bad winter has shown up here.