Hello TB'ers, I have a Gibson made Tobias growler that has an annoying buzz on the open g string. I have tried many truss rod and bridge adjustments and it will not go away without having the saddle height maxed out. Since it is only on the open note the only thing I can think of is that the nut is filled to low. All the other strings are fine so my question is, could I put a filler (glue?) into just the g string nut slot and then re-file it to a better depth? Any help would be greatly appreciated!