My Jaco artist bass E string gets a little buzzy when I have it as low as I like, and as low as the other strings. I am pretty certain it is because it is slightly high at the nut, it seems to be better if I put a slight pressure by the nut when playing. I have never worked on nuts, that is something I was always told was best left to professionals, but I am cheapskate and this seems like a really minor piece of work. I would imagine it would cost me as much to buy a set of files than it would to get the work done. On that note, has anybody used these files? From what I gather you just use the smaller sizes to file the larger slots as even Stewmac's set does not have all the string sizes or even the ones I prefer. The E string on my Jaco is .105 and they have a .105 file though, so I am good there. Is my idea nuts? or should I go for it? Any good recommendations for reading material before I attempt something like this? Any tips from seasoned vets? One more question since we're talking nuts, should I ever use something to hold the nut in place or should I just let the pressure of the strings hold it in place? Thanks in advance for any help!