When I did mine I decided to take a wire brush to the gold plated ring to clean up all the flame marks and the point where you melt solder. Question is did I just make my terminals susceptible to corrosion or rust? I see a small ring of orange around one of my ground connections on my passenger side battery that appears to be rust or corrosion (no picture). I did this for my Big3, or more like a Big 6 for my duramax, but it has only been on for about a week so I'm worried about the longevity of it. I bought techflex and more heat shrink so I have to pull the wires out anyways to dress them up but I'm wondering if I should buy new terminals and redo everything without brushing off the gold plating this time around.
Here is a example of a terminal I did: