I have a Maruschyck Elwood 5, that just recently has got a string buzz on an open A string. The string isn't particularly low (and hasn't changed). None of the other strings buzz, and it only buzzes at an open fret. With a non zero fret I would say the nut needed doing. What do you do about something with a zero fret? It hasn't been played that much or had a hard life so not sure why it would be like this. I suppose I could raise the action on that string, but it is already the sort of