RE: CMP Katana & Extra 300S
IMO, if you are looking for 3D performance, the H9 Funtana would be a better choice. If you want IMAC, sport flying then I would choose one of the 2 you listed. I have the CMP Katana and the Funtana, the Katana is about 2lbs heavier than the Funtana (about the same size).