Update and sneak peek
As an update to the previous post, I used that method on the piece below, which will be a wallet backplate in the near future. A little over 2 hours worth of carving and stamping, and no curl on the edges or general deformation. And indeed, those impressions are better looking than some of my previous attempts.
As you can see, i went with the packing tape method today, and it worked out really well. Removal was simple, and just left me with a slightly fuzzy backside:
Shiny!