Well, when I had just the Bank, I kept it at 4000, but when I got my Bank Roll, I polished up the Bank to give it some separation. It's much better on the fresh with a little surface. I think I could get away with 1000 and polish, just so it wasn't so sensitive.
So are you saying that the Horn core rolls like the SRC in the Bank series?
If you are, that means good things for me and bad things for my wallet lol.