Nice work, @4speed! You have some machining skills way beyond mine...
I'm interested in the purpose of the clip over the Powerpod tab. Is it to prevent wear on the plastic tab, or to insure a solid connection to the mount? I could see where one could make a clip that would allow the mount to be tilted to optimize viewing the Garmin screen while still keeping the Powerpod at the appropriate angle. I find that I have to run my Garmin flatter than I'd prefer to keep the Powerpod as parallel to the ground as possible.