 Over time, Nelson has worn a large hole above the bridge, nearly reaching the sound hole.While classical guitars are meant to be played with finger-style picking, Nelson's use of a flatpick, and constant strumming, caused the damage as the pick slowly scrapes away at the wood.Trigger’s wear is so great that even the steel frets have been worn down from smooth ridges to wavey lines by the nylon strings over 10,000 shows of exclusive use.