I believe that both could be used by putting the domiplate on first and then the SCG-10 on top by using longer thumbscrews to accomodate the domiplate thickness. I have used the domiplate to center a domino on 2 x 4's by using spacers with longer thumbscrews between the domiplate and domino base plate.
There does appear to be a limiting factor here as the SCG-10 stop arms could only travel up to the domiplate's side.