i myself done lots of research and from what i can tell the raptor is the only way to go. there seems to be lots of em and the hawk sports also. i myself have a raptor 50v2 with a OS 50 engine and a jr xp8103 radio and 401 gyro, 9254 rudder servo and jr 811's digital servos all around. very nice heli! i recommend www.heliproz.com if ur in the US they are based in Billings Montana. good luck!