Allan,
see the post of Chris on the other thread of the succesfull first flight of the Pup!
For you I got some (first hand) data:
After take off only a bit off down trim was needed which means the CoG is on 95 to 100 mm from the top wing LE
Aileron throw is 1/2" up, definetely use Aileron differential (50%!!!)
Could mix rudder with aileron with a switch, tried both and as expected the turn is smoother with rudder mixed to it.
Throw of the Rudder just max what you can get, tried some stall turns: perfect!
Elevator throw 1/2" up an down is more then enough.
And then the engine power, we definitely had more then enough power with the 52 Magnum fourstroke, take off at 1/2 throttle (from grass!!!)
Flying around all the time (23 minutes in the freezing cold, we must be mad
) with little above idle, used (short) full throttle to perform a nice loop
so I hope you can use these experiences to make your choice....
In general she's an intermediate flyer level plane, stable and no surprises!
Good luck with building this beauty, and if you have any other questions: just ask!
Frank