I would think bare wire is the way to go, contact cleaner should work for oxidization but just buy and extra few inches on both sides and clip an inch off every 2 years.
Speaker Cable Termination
Because I have owned Mag 3.6 for awhile I have opted to use bare wire at the speaker/amp terminals. Non-scientifically, it seemed to me that there was no need to introduce something into the signal path that was not necessary. I have used bare wire with Kimber 4TC for over 10 years. As I am looking to upgrade my speaker cable, it seems I now have to consider termination. I say all this to pose the question of termination vs non termination on speaker cable. Thoughts?