RE: Showtime 50 vs Showtime 4D
engine mount. Just push out the blind nuts on the right side mount, expoxy some wooden dowels flush with the back, and let cure.
Saw em off flush in the front. Move the mount 1/8 inch over and redrill. CA the blind nuts backin and pull em tight with a bolt on the mount.
I just did this on another plane. worked like a champ.