RE: Great Planes Reactor GP/EP 3D ARF .46-.70
By mechanical mix do you mean you are using a "servo reversing Y cord"? Or?
What engine did you go with on the 60 size Twist? In the new MAN they use a Saito 82 and say they love it, hover at 1/3 throttle, etc., and it came out at 6.3 lb. The 82 seems kind of small for a 60 size plane though.
Thanks,
Ernie