Looking good Snig my friend!
A suggestion for you if I may please. I drilled two small holes in my Stew-Mac bridge gluing caul so that I could use steel registration pins in the corners of the saddle slot to pin the bridge in place. The caul, with the two holes and if I position the stinkin thing with the front toward the front...., fits right over the pins.
The benefit is that a couple minutes after my HHG sets up I can pull the pins with the bridge still clamped. If you wait for the glue to dry completely the pins don't always come out very easily.
Back to your original question: be mindful of your bridge shape as well. What ever you use for the bridge wings needs to be able to conform and produce even pressure on the wings. With my two bridge shapes the Stew-Mac caul works but just barely. It's not so easy to see from my picture but the wing cauls will tilt to some degree conforming to the taper of my bridges.
Attachment:
DSC01497.jpg