Disclaimer: Do this at your own risk. I have spare parts in case it didn't work and even then didn't decide to pull the trigger and try it till I had messed with it for a few hours. I nor ECF endorse this mod. It's for informational purposes only.
The objective for me was getting a solid brass/silver/or aluminum contact to maximize conductivity vs a point of a bar with minimal modifications to the original design.
So it started when I repaired a melted button