[Elecraft] K2 gettin' old.....

[Eddy via Elecraft]

Greetings all....I just realized my K2 (# 3500+) is getting old, I can't remember exactly when I bought the kit from Elecraft, but at least 12-13 years ago.
So, as things begin to wear out, any suggestions on what to clean, as in different front-panel POT controls that and suggestions what to use to clean them? I have used Detoxit and it seems to work very well.......
Thanks all........73
ed - k6sdw