I've laid a color coat of automotive acrylic laquer. Are there any problems in topcoating with clear poly(minwax) vs. clear acrylic laquer(krylon)? Reason I'm asking is I think I may be able to do a more level clear coat with poly and end up doing less wet sanding. If this is OK how long should I wait before spraying the poly........or is it better to use acrylic topcoat? This is on a experimental cheapo project. Thanks!