My bike had crappy brakes and then one day, all this black rubber started smearing onto my rims. I got new pads (Eagle 2's) and the bike person told me to clean awaay the rubber smudges on my bike using steel wool. Does that work, or would that take the rust proof part off the rim and make it vulnerable to rust.Should I use the steel wool, or should I use something else to clean it off, without destroying the rim. Also, I'm presuming that it would scratch the rim alot as well. The salesman said that if I didn't take the rubber smudge off, a lot of noise would result, as I already had alot of squeaking going on, when I braked. By the way, I have v brakes.... What should I do??