Re: Question about the holdfast hole
William Duffield, on the Cohansey
>It works great to hold your chopsaw in place on top of the bench.
...ducking and running...
Seriously, I don't have one of these, but I recently replaced the tops/jaws on a WorkMutt with 8/4 hard maple. I put lots of dogholes into these, because the original WorkMutt dogholes never seem to be in the right place to get an effective grip on anything. Afterwards, I discovered that a holdfast works well in these dogholes, for all sorts of things beyond holding tailed apprentices in place, not necessarily furniture joinery, which I do at my main bench. Unlike Chris's bench, I would NOT recommend mortising on the top of WorkMutt, no matter how thick you make your replacement top.
A question: On your other saw bench, the plywood one with two steps, you have a pair of parallel vertical slats attached to one side that are used for holding doors, etc., vertical to facilitate planing the edge. It seems that your saw notch should work for that function, too. Do you use it that way?