Well I still haven't found a good solution to this problem. I kind of stopped working on it for a while but with better weather on the way I got to get this done. I may just give the 3M stuff another try, but it seemed to me that it evaporated pretty quickly.
I will say that my pads definitely do dust like crazy. It's weird in that the though the driver side will get just as dirty, it will clean up no problem. The passenger side is always a major battle.
Out of desperation I was thinking of trying Adams all purpose cleaner with an old tooth brush.