So, what I'm asking here is: Do I have to live with this black crap all over my rims?
I bought the Kool Stop Salmons hearing that they are both rim friendly and noticeably improve braking, especially when wet. They are nice when braking, but I'm WAY too OCD to let that stuff just stay on the rim! I've used alcohol and a well used scotch pad to remove it a couple of times.
I have noticed that removing it reduces braking capability until a new layer starts to build up, then improves. Is this black rim dust/pad dust smeared all over my shiny rims the price I have to pay for hitting the binders? If so, that's not so Kool. Thank God I only have one brake, I'd still be cleaning the second wheel!