Hi, I've been using ghs fast fret for a couple of years approximately every other time I play my guitar to clean the strings. I just want to know, does anybody know if long term or frequent use will cause ANY sort of damage to my les paul. I'd rather have to change the strings once a week than have a product like fast fret damage my fret board or neck or something. I don't know how much you can trust these things. On the other hand I don't want the fret board to dry out, but maybe it would be better to change the strings more often and treat the board once every three months or so??? what do you all think??