FWIW...I use MM enamels (exclusively)...I gloss with Minwax clear gloss lacquer (Testors clears are also lacquer). The only time I've ran into a problem is if I sprayed the gloss on too thick (it will wrinkle the paint). To get around this, I spray a couple mist coats, giving a few minutes to dry, then spray a heavier coat, to get a good gloss. Being solvent based, I use waterbased washes (home made from cheap craft store paint). Testors dull coat to finish it off.