hi I would like any one's opinion about the daytona speed master brush lg.and mini brush. First I have already checked past threads. here are the products i am using now wg.tire and wheel cleaner/bone by cobra mf sponge to clean face of wheels/carrnand sheepskin brush inside wheel cleans ok brush is to short and not durable but will not scratch. My concerns are will the daytona brush scratch or swirl my wheels. I have cast aluminum alloy wheels brand new car audi with 10 spokes. Time consuming to clean. I have both daytona brushes but never used.