How do you guys do it to get the guitar looking as near new as possible? It's a 2008 SG Standard, not sure if it's poly or nitro finish - any ideas? It's in pretty good condition to be fair but there are a few scratches on the pickguard, swirling on the back of the body (kinda belt rash but it's not gone through to the wood) and a little chip/ding on the headstock which I'd like to smooth out if possible (will take a photo of this). I've heard of Meguiars in the past, this still the best? Specifically which Meguiars?