Stripper is best, Acetone works, especially on the older wheels I don't have hard evidence but I think the clear coat was changed from maybe lacquer to a catalyzed enamel? maybe around 77? the I have used stripper but worry a bit about what is left in the spoke/wheel junction causing corrosion. A 4" blue dico wheel in a drill is very helpful in removal and first step of polishing, especially in the gutter. Be aware that the thin plating coat on the spokes and nipples will polish right off. The steel underneath will look bright but quickly rust.