I guess this isn’t really a benefit of square dogs over round ones, since the same thing could be accomplished with either.
I was chopping out a spot on a leg for a shelf to rest on, and it popped into my head that the dogs could keep the leg from shifting backwards. I suppose I didn’t think of it before because I’m used to thinking of using the dogs only in their “proper” orientation, IE inline with the wagon vise.
Anyways, it worked great. This does underscore the convenience of putting a dog in every single dog hole.. If you are making your own, it really pays to take the extra hour or 3 and make all of them.