the difference between the 800 and 2000 is there..but to the naked eye it is had to see..the 2000 when compared is a more mirror finish, sand marks are in microns..and when compounded, and I prefer hand polish over machine, the swirl marks by hand are not noticable in bright light. The paint job I did on my friend's Tiger was hand poloished with Maguires to the tune of about 25 hours...lots of work but worth it..he always gets class and best of show trophies out the yang...I was amazed at bestof show, Spartenburg BMW all European show..over 400 cars that day...with time, and lots of hand work lots of paint jobs can be turned around..it is according to the amount of work you want to input..the paint shops cannot work to this level and stay in business...they are there for the quick insurance paid collision repair work..with base coat clear coat quick shine no effort paint of today.. I still prrefer a single stage enamel and the shine will be top notch with a bit of hand rubbing...