We did have this cleaning thread many years ago, might be worth a quick read. I appreciate that it does not fully address your polishing question, but it is a start:
https://devialetchat.com/showthread.php?tid=333
This one does cover polishing:
https://devialetchat.com/showthread.php?...ght=polish
and another one:
https://devialetchat.com/showthread.php?...ght=polish
https://devialetchat.com/showthread.php?tid=333
This one does cover polishing:
https://devialetchat.com/showthread.php?...ght=polish
and another one:
https://devialetchat.com/showthread.php?...ght=polish
1000 Pro - KEF Blade - iFi Zen Stream - Mutec REF10 - MC3+USB - Pro-Ject Signature 12