One thing I would recommend with a push pull on the rudder, is to mount the servo on the left side. For flat spins, the engine torque naturally wants to pull the plane to the left, so I usually flat spin left for that reason. But the servo would be pulling on the rudder arm verses pushing, where the push rod could flex a little. It's a high stress situation on the rudder and linkage. It's just a thought. My CAP232 27% has an option in the manual for both setups but the previous owner of the plane messed up the pull-pull setup pretty bad so I scrapped it and mounted the servo in the tail. Good luck.