While there are obvious fakes(strip-jobs), with the price of a 70's Fender being what it is it seems like I've seen a lot of "questionably Natural" basses on the market lately. It also seems that a fair amount of 60's basses were stripped in during the 70's when that natural look was at it's peak popularity. Any tips? Is there anything concrete or is it just a matter of judging grain and looking under the PG for fading or residue? It seems like spotting a real "Natural" Fender may just take an experienced eye.