If the swirl marks and spider webs are very very slight sometimes you can get away with a product that has some filler capabilities. Chemical Guys Blacklight is a great one to try out. It can "fill" and hide some very light imperfections and is a great sealant as well. Really easy to work with and it lasts pretty darn good. It's about $25 for a 16oz bottle and will last you numerous applications. Might be worth a shot.