I use gel super glue, 2ton epoxy or TBIII for tip overlays. Rubber bands are the best clamp for tip overlays I've ever used. I glues a set on this afternoon. With some antler there is a pithy area that can cause problems as it will rob the glue joint of glue. If you soak that pithy part with thin super glue first, let it cure and sand smooth it will work better.