Aloha Darrolair.

The original PT-17 stearman has only two ailerons, you are correct. But, the super stearman as in the real aircraft does have two additional ailerons making it 4 ailerons. In the real world, military pilots who bought the older PT-17 transformed them into what is now a super stearman, by adding two more ailerons and adding wheel pants and changing the original power plant to a pratt & whitney with around 500 HP. The original engine was around 250HP or so.

My set up is; futaba 617 RX, 3152 digital servos and for power a saito 150 GK running an master airscrew 16 X 8 prop.

There is provisions for two additional servos on the top wing, but I kind of wanted it to look more scale like and use the control rods to link the top and bottom ailerons togather.

Regarding the connections between bottom and the top ailerons, there is no slop and everything is as tight as possible.

Mahalo for your imput regarding my situation.

Mike..