I'm looking for some specifics on an LP jr mortise and tenon. There's loads of DC plans, but not SC. From pics of a jr, I can see the neck and cutaway area don't make a smooth transition. Is the fretboard more narrow at the heel than a standard? It seems as though it would have to be. I know the neck tenon follows the full taper of the fretboard. I just can't figure out what's up with the gap inbetween the fretboard and the cutaway.