What is the limitaton on height of the
tenon? Any?
If I'm reading you right, it seems that as long as the mortice isn't visible,
you could go_almost_ the full width of the tenoned stock.This would maximize
the holding power of the joint/glue. That, and depth Unless you _wanted_ to see
the mortice around the shoulders, then make no shoulder cuts at all. But
remember, wood has some seasonal movement across the grain, so a very
wide(tall) tenon should probably be pinned with that proviso in mind(ovalized
holes in the tenon), and sparingly glued nearest the center. Tom
Someday, it'll all be over....