Canyon John, If you go to either Radio Shack or Fry's you can pick up a cleaning kit made by Caig for about $20. This kit includes the Caig DeoxIt and the Caig Gold plus cleaning tips, wipes etc. Just follow the directions and you will have nice new looking well protected plugs.
The silver tarnish is NOT "slightly more conductive" and should be removed.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.