I´ve red about using Wood Filler on guitars and that it kills tone and sustain. If so did they use Wood Filler in the same way back in the 1950´s like they do nowdays both on the USA and CS made? I got a 2005 Les Paul Standard Faded and it should have less Wood Filler than a regular LP Standard. It´s one of the best sounding LP´s i´ve had and i´ve had a few.