I was checking to see how a 3/4" dog hole would look in a vise jaw made from two 3/4" pieces of plywood. Just clamped for the test, but would be glue for the real thing. Interesting to see the hole opened up. And luckily no splitting, but do you think it would work as an actual vise jaw? This is for a Veritas quick release front vise, so the jaw is only supported in the middle.
I think that would be a perfectly good jaw vise. But only put in a few dog holes, as shown in their product photos, to maximize rigidity.