ORIGINAL: Druss
I know what you're saying ea01bg but I personally wouldn't use a 401 in a 600 size heli. Maybe that's just me but if I wouldn't do it unless I couldn't afford anything better. The servos are not that appealing and the battery sucks.
If you're willing to spend the money on a 600 size heli then do it right... That's my philosophy but to each their own.
Apparently you do not own a 401 or you wouldn'y say that. I have one in an EVO.50. Works great unless you want eye watering piros up and down the field in fast forward flight. Hey, I can live it.
Jim