Can anyone tell me what size servo they are placing in the middle of the elevator when modifying to a single servo versus using two elevator servos? Also, I see some are using one to no servo for the rudder. How is this set-up working? I have a Bobcat 50, and I plan on using an evolution 61 fitted with 11X7 or a 12 X 4 pusher prop for power and install robart retacts.

Any thoughts on this would be great