I have a friend with this plane and is running a TT61 ... It flys very stable but it did come out faily heavy,around 7lbs i think it was.Do not put a 46 2s init as it wont even get off the ground with this sort of weight..Another member of my club had one with a ys63 and it was fast but he didnt like it much , it was loned to him as his was shot down.