So my stainless rub rail got abused this past season when a bow line hopped out of a chock and my rub rail r u b b e d on metal dock parts to an ugly degree. Let's just say that the affixing screw heads were rubbed completely flat. Not quite done with the rehab yet, but these videos have been great for getting abused stainless back to a mirror finish.

https://www.youtube.com/watch?v=wTxR8LB9iek part 1

https://www.youtube.com/watch?v=nc1iY08HU7w part 2

https://www.youtube.com/watch?v=mWy9awGv6so part 3