I currently QD my car about every other day--now using diluted ONR and seems to work quite well. My question actually revolves around the California Duster (ot I think OXO as similiar product)--Any Pro/Con/Experiemces good or bad.. I was wondering about it dragging grunge along the paint and leaving fine marring or worse or leaving a waxy residue--I suppose the QD would remove the residue--Comments appreciated:secret