Im a big supporter of the Hanger 9 Pulse XT. I have an OS 46 in mine. It flies GREAT! Good on low rates - great on high. Will grow with you into aerobatics. I read someone mentioned the GP SUper Sportster. I had it as my 2nd....didnt last 2 weeks. I personally feel as it might be too much. It was a beast with the OS 46. Very fast. I might leave that one for 3rd + plane.