Also, if you haven't tried it, I run continuous webbing on a VDH plate.... it narrows how the harness crosses, helping me keep it as low on my back as I want it.
My very first approach was to do continuous webbing. I wove it through a shoulder slot, down through an upper tank strap slot, across to and through the other tank strap slot, and then up through the other shoulder slot. This approach left the cut-out for the can completely free of the harness webbing--which is necessary if you dive a skinny tank and use a VDH Phoenix nozzel on your U.S. Divers DH reg. (I'll look to see if I have a photo somewhere.)
However, though this first approach worked okay, it was a bit of a kludge. And aesthetically unpleasing. For me, my sewn solution (pics linked above) is much, much preferred.
rx7diver