G10 Cara Cara.
What happened with the Byrd is the pivot area loosened up real quickly. Eventually half the pivot bolt fell out. The lockbar felt slightly compressed at this point. I think what happened next is the handle started breaking apart while the pivot area continued to dissasemble itself. The scales were really seperating at this point, the metal back spacer was about half a cm from one of the steel liners for instance.
The Buck failed a lot quicker. The blade eventually popped loose from the lockbar at the pivot and the tip broke off. It was smacked a few times on the side to tighten it back up and put back to work, only to do the same thing again and eventually crack through the handles themselves.
I'll get pictures of both knives. Could also post pictures of the lockbar and blade contact areas for a comparison.
This was 95% due to some chopping and prying. The tip of the Byrd was a lot more robust than I thought, it never came apart.