[BusNit]

I have been wiring in an electric trailer brake. While doing so, I cleaned up the front relay/fuse/terminal board. I have three separate ground posts on the upper left side. None of them have a large wire that I can see that goes to a negative pole. I believe all wires are small gauge with the 10/32 post being a binding connector. I would like to put a #12 jumper across all three posts to help balance the return path. I did verify with my meter that they are all grounds to chassis. Is there a specific reason Newell wired these up in separate groups? DDEC? I do not see any harm in providing a path of lesser resistance but wanted to pick everyones mind. Bonus points if anyone knows what the potentiometer is for!