RE: Sig Wonder Build
Dash,
I don't know 72 mHz Futaba stuff that well but in 35 mHz they do make small receivers. I've gottwo 6 channel ones and they are ok.
I've tried to fit a JRSPEKTRUM system (2 reciever system) but the WONDERis too small for it, so I went back the the 35 mHz receiver.
Cheers
bundu