I'm thinking of trying a conductive grease/compound on the barrel thread. That's where most of the corrosion exists when it occurs. That sort of grease/compound should prevent corrosion from occurring. Just have to find a small size supply of it and make sure it's compatible with aluminum. EDIT: Might give this a try - http://www.ebay.com/itm/Cb-Radio-NO...560?pt=LH_DefaultDomain_0&hash=item1c1a30ea18 EDIT2: Yep. This stuff might be the fix we're looking for. See the company write-up: http://www.sanchem.com/electrical-contact-lubricant.html Ordered it. Will document my findings and post pics when I get it.