Hi Dave, No I did not. I’ve had 2-3 polishing “projects” going on for a few years, but have never gotten to the MK. I did complete a now gone K9. No Flitz or Mothers was used. Sanding, filing, stoning and a buffing wheel was used. I’ve still got pics of the K9 and will attach them to this response. Good luck if you tackle that project. Just be ready for it to take a lot of hours, a lot of sandpaper and a lot of buffing compound. I generally start out very rough on stainless (#250 grit) and work my way to #1500 grit, also using the files or stones to get rid of any metal cast marks, chatter marks, metal boogers, etc. Then it’s to the buffer for black compound, then green. Sometimes you’ll have to go back a step to your more rough stuff. Anyways, hope that explains it and helps. I’d invite any more questions you may have once you get into it. Happy polishing!!!