CG Ultimate 2-stoke advice
With my Saito installation, I moved the firewall back 3/8 inch and added 2 degree right thrust. With all the gear just aft of the wing, it balances slightly aft of nominal. 8.75 lb total weight. To install the gear at this location, I made a hatch from the fuse bottom aft of the wing and forward of the former. The receiver and battery are attached to a vertical plate that gets screwed to the former. The servos are just forward of the former.