My bass has decided that if I straighten the neck, even with the bridge all the way up, there will be MILLIONZ fretbuzz! I have noticed that the nut is very low to the fretboard, so should I just replace that instead? It's not a standard nut, it's a bit like this: http://ecx.images-amazon.com/images/I/31S9FgVHw5L._SL500_AA300_.jpg
Thoughts?