I'll see if I can find my plans from mine - it's the early version with the Stick tail, but should balance the same - about 28% - 30% behind the leading edge if I remember correctly. For the throw - you should be able to go about 1" on the elevator, and as much as possible on the rudder. Do you have the version with ailerons?

I've built several of these in the older 3-ch version (although I did have one 4-ch), and never had one that didn't fly good - one of the best secrets in basic trainers out there, and almost indestructible if the fuselage is built with epoxy. The .40 size version flew great for a trainer on a K&B 3.5cc (.21), and an OS Max .30. An OS .32 is more than enough power, and it is capable of thermaling. If you have a .40 on it, even an LA .40, that is too much power.

Hogflyer