A4hawkpilot,, your rudder servo is very much like mine. I used a 1/4 scale 120 oz servo in the vertical stab, but low enough for the servo arms to extend through the stab and used a pull pull w/ 4x40 linkage. I will give you yours looks better with the hidden linkage.

did you fly the A4 bird? I saw one land at Danang on fire do a realllllllllllllly hot landing. He was flamed, but flamed out also.

Nerves of steel that guy, but then I was on the end of the runway in my bird waiting for take off with him head straight for me.. Good thing for tail hooks and cables.

Fire truck put the fire out. all was ok. Time............................1971