Thanks Tom! I haven't tried the 4053 yet, I plan on buying a bottle pretty soon. From the videos I've seen, it is glossier than the 4050. The 4050 is pretty easy to work with, I start with the company's suggested thin ratio, then add a bit more thinner as my airbrush doesn't like to spray it at the suggested thickness. It does need wet-sanding and/or polishing to get shiny.