X2 on the dielectric grease! I highly recommend using it on all your electrical connection. I keep a tube in my electric bay and squeeze a little in the pedestal before plugging it. The stuff is remarkable at saving your connectors.
Uncle t, I'd be interested to know about how you went about acquiring a replacement for your surgegard. I had my Camco 50A surge protector let rainwater in and ruin it after 4 years of use. I emailed Camco asking about a repair facility to which they replied there were none and repair was not an option. They're only in the business to sell new ones. Then I heard that Progressive had a lifetime warranty. I'm in the market for a replacement and I can assure you it won't be from Camco.