I have been promised the use of a Sikkens Master, but this is the weekend and all the Sikkens Masters work Monday to Friday. I am not 100% sure that I have a real problem, but I am listening to all the input from people with more up to date experience than myself. The only actual problem I have had with wrinkling occured when I tried to apply new base/clear over areas that I had painted 48 hours previously with base clear and for one reason or another had messed up (thumbprint) and wanted to respray to fix. Today one of the wheels I sprayed wrinkled a bit, but that was one of the wheels which I had painted last year with "Zero Rust" paint, a high resin enamel chassis paint. I have not really had an issue with wrinkling on any of the parts which I have primed over the last year---its just that I am really gunshy now, and trying to anticipate problems and how to avoid them. I have painted a lot with acrylic enamel, and a bit with base/clear in the past without problems, and now this damn wrinkling business has me a bit weirded out.