I have a Fat Bob and have been having some difficulty in getting the wheels good and clean. I was turned on to the S100 Polishing Soap which works good but doesn't seem to get the job complete. I rub and rinse, rub and rinse, and rub and rinse some more and it doesn't ever seem to get them completely clean. No matter how many times I repeat the sponge always comes away dirty. Add to that the spotting that remains afterwards on occasion. Anyone out there have another product or different method in using the soap that works?? Any advise is appreciated.