Should've left it alone. I'll live and learn. Attempted to lower some slightly sharp notes in the open position by filing down three string slots. This was the first time at this and need I say, got too deep on the fat e-string. Buzzes pretty bad at the first fret. Tried to add neck relief but that didn't help. Placed a super small piece of doubled over painter's tape in the slot and it works fine as a temporary fix. This is no vintage guitar, so my question to you experts is......would you replace the tusq nut or try this baking soda repair? Looks like the local Hobby Lobby sells water thin super glue. To those who've done this, did it work for you and is it a permanent fix?