A while back I deterimined that the pilot seat was mounted about 2 inches too far aft. Installed new, additional hardpoints forward and adjacent to existing hardpoints thusly, moving the threaded holes 2" forward. The process was the same as before...........Make 4 2"x2"x1/4" hardpoints, tap to 1/4-20, install on seat rail. Remove 3"x3" top floor skin and foam. Fill void with epoxy, cabo, flox and a little micro. Smush hardpoints (assembled on rails) into this epoxy mixture. Let cure.