upgrading regulator

one other question about the bulkhead fix Leo, it says to pack it with grease (dielectric?). here's a can of worms opening, LOL, I have read that the grease is not conductive, and will lower your surface connection. and if that wasn't enough ;) I have also bought into the crimp on connectors over soldering for the same reason: 1-non-conductive (most) 2-brittle
your thoughts? thanks again