I recently bought this '99 Les Paul Classic. It has some finish checking, but I can't decide if I think it occurred naturally or if somebody took a can of compressed air to it. It appears on both the top and back. It appears more around the knobs and other typical wear spots (ie, where your arm rests, or where your belt or waist touches the back of the guitar most). It looks pretty natural, but I've heard that the tighter pattern, as opposed to long lines is typical of artificial relic'ing via blow dryer & compressed air... just curious, what do you think?