Matthew Brandes came over tonight to check out the RV-7 factory. He pointed out that the dimples I'd done with the DRDT weren't deep enough. Dang. I had originally been lazy and not bolted the DRDT to the bench, so I wasn't able to yank on the handle with sufficient force to set the dimples properly. So, I had to laboriously re-dimple the three skins I'd done so far (2 HS and 1 VS) after setting up the DRDT so it can be quickly attached to the bench and then removed, which is so boring that I won't bother to post a photo of it.
Oh what the heck, here's a photo anyway: