Hang on, this must be the SG you posted pics of elsewhere: Looks pristine to me! Why are you describing it as 'heavily used'? Like many Gibsons it left the factory with a gap on the side of the tenon join, something the seller most probably wasn't aware of, unless he'd taken it apart. Judging by the condition he doesn't even seem to have played it much, let alone strip it down! At some point the typical finish cracks have appeared around the neck joint. Might've happened in shipping from the factory, or shipping to you, it's not necessarily a sign of heavy use at all. Like I already said, my white 2014 already has the same, and it's not had any rough treatment - it also got it's first finish checking at 4 years old. Most of the yellow Gary Clarke Standards had finish checking within a year! I'd say you got one of the cleanest white 2013 SGs you're likely to to find. If I were the seller I'd assume I was dealing with a chancer who's trying his luck. Best I'd offer would be a refund, so I could sell it to someone who'd appreciate it. But if I were you, I'd just play it... you'll soon forget the tiny finish blemishes you can't see. This is why I don't ship when selling.