I am hoping for a far more repeatable mortise when making a lot of them.I don't know guys. Nothing against the idea, but it seems like an awful lot of trouble just to put a long hole in some wood. I think I'll stick with holding the wood with my hand against a fence.
If nothing else, it's a lot faster getting the job done.
It should make it far easier to center the mortis and handle the stock. My old fence and hold down was always frustrating and a pain to get right.
I am still looking at how to make some stops for the vise for some of my more frequent mortis sizes and positions.