Start with CG 5 1/2 to 6 " from leading edge at fuselage . Ail 1/2" up/down low rate , as much as you can get on high. El. 3/4 " up/down low rate , 1 1/4 high , Rud 3/4 " low , as much as you can get on high , Flaps as much as you can get or 45 deg full down , 15 to 20 deg for half down . I am using 40 expo on low EL and 70 on High , same on Ail.
I have the Brison on mine and needed 2 1/2 # weight in the nose to balance with all batts in the engine box . I installed the servos in their rear mountings , you could reduce nose weight by moving the tail group servos forward. The plane has excellent flight properties , very stable , Using a 20x10 thre blade Biela prop it moves pretty good . Got more speed from a 2 blade 21x10 Menz Ultra , but t0o much prop ripping noise .