Oh yeah for sure i have sent a bunch of messages back and forth. Like posted earlier he says it flies great. Just trim it out and the sucker is a blast to fly. He has flown lots of planes so i guess a tail heavy super cub was easy for him.
My buddy who tested it was flying in some pretty gnarly wind. Like the motor was going but the plane was not moving forward at times.
I guess some guys use the bigger battery just fine. Wonder what theyre doing i hope searching leads to an informative post. If anyone has advice how to clearance out the batt tray im all ears