rudder servo mounting had to be done on the top of the wing.
pictures will show why it is good to measure vs. eyeball guesstimate
the side of the servo pockei is 1" outside of the fin panel
the rear edge of servo pocket is 5/8" in front of the prop clearance notch in the wing
My first cut started too far forward and was over the retract pocket thius the support block for the servo had to be moved aft. The support bloch front hads a notch to clear the servo lead, it is fitted between the wing skin and gear mount. It is also notched to be flush with wing skin to fill in my rerror. the rear support block measured 1/2 x 3/4 x 1 1/16 the height had to be sanded slightly to fit the curve of the upper wing skin. 15 minute epoxie was used. The servo wire will need and extention to get into the fuse and a Y cable to run both servos. no reverser needed. I had a pair of Futaba S3102 on the shelf and will operate the rudders.