

These happen to be D'Pergo, but I've seen a few pictures of this idea from other builders, so for right now it's a cool guy/insider type of thing. It does make quite a bit of sense - the standard heel block is an inch thick, give or take a bit, and you wouldn't really need more than half that for strength with the body grain running the long way, and the strings pulling primarily horizontal. If you tried to break it you'd still pull out the neck screws or yank out the threaded inserts before you'd break the pocket. So instead of just slanting the neck plate or cutting off a corner (Fender/Music Man style) you sink the whole thing some (and D'Pergo slants too). We can be pretty sure we are stuck with the giant block because it was easier for Leo Fender to make 62 years ago.