An original idea... (or solution)
Hi, as I understand it, you basically want to change over to brass, because brass for reasons unknown to me, is gives good grip under sweaty hands, and SS doesn't.
One idea is to use a coarseish grained carborundum abrasive cloth backed strip, about 25mm wide (one inch) in a length of about 700mm (from a roll) that actually cuts into the metal surface, and to "polish" the pole as one does with a cloth and shoes.
Then work the pole up and down it's length, periodically rotating the pole as you go.
This should give a properly grippy surface.
The other idea.. is if you really must have a BRASS pole, well one already has a functional POLE, one can get the pole electroplated with brass.
If you seriously intend to stick with the pole (yay) , lol, then get a good thick coating upon it, like the sort of decently coated brass plated door knobs etc., and not a very thin film, like what the manufacturers put on ornamental thin steel "garbage" that appears to be brass.
Best of Luck.
2shane.