I wondered for a minute how you fixtured it. Thought maybe you did it on a lathe. I have a drill press and started to think how I could hold it. Didn't think of using an old carto (maybe cuz I don't have one). Guess it didn't harm your chipset or associated electronics if it is still working.yes. i put a carto on and attached it to a drill. the ceracote was a bit of a pain as i only had 400 grit and finer. i think i'll finish the gmz with 4000 to make it shiny. 400 matched a kayfun nicely.