Bought the Meguiars clay kit to see if it would lift a blemish I found. It didn't. But the paint feels more smooth, and I wonder if it will lift some rust stains. Question: it say to use the quick finish stuff, as a lubricant, which on the bottle says it is for use in between waxings. I don't have any wax on the vehicles, so if I have enough time I might use some old Turtle wax for fun. Would I need to wash off the quick finish before waxing?