It doesn't always work like this but usually if it doesn't say enamel, it is a lacquer. Lacquer just means that it dries by evaporation of solvent where enamel cures by chemical bonding/reaction. Simply, if you can dissolve it easily after it has dried with the same stuff it was canned in, it's a laquer.
I just would keep to using paints that use the same solvent. Automotive paints are normally lacquer, so are many hobby paints, while most of what you find in a spray and many in a can at a hardware and building store like Lowe's will be (labeled) enamel.
(those automotive touch-up sprays and jars you can find at places like Pep Boys, etc and even at Walmart are lacquer) Cresting paint from an archery store will be lacquer, of course. I only point it out because enamels are a pain in the _$$ to remove if you goof up or need to repair a chip, etc while lacquers can be removed fairly easily. Then all you need is a rag and some of the same solvent (lacquer thinner, or whatever if on the can), wet the shaft down with it and rubb off the old paint.

With carbons, as long as you don't go too crazy, using lacquer you could pretty much remove and repaint them every week if you wanted to without hurting the shaft.