I come from a family of woodworkers, carpenters, and furniture makers. Plus, I'm a structural engineer. I have built and repaired gun stocks and expensive guitars for many years. For your wood laminate stock butt repair, to replace the 2 in. you cut off the end, a very strong fix would be to use 1-hour epoxy in a snugly clamped configuration. Use 2 long clamps, one on each side. Do Not over tighten. Wipe off excess epoxy. Once epoxy is dried & cured, clean and sand glue line area. Mark and drill Holes for butt pad. Then also drill, countersink, and attach 2-3in construction screws (or deck screws) to reinforce butt bond joint. Drilled hole should be 3/32in., or half screw diameter. Sand with-the-grain with 240, then 400 grit sandpaper; Then clean and finish with tung oil, or finish of your choice. Best of luck!