I am trying the Steve Harris Rotosound Signature SH77 on a Fender US precision 2012. It's 50 75 95 110 flatwound. The string set before was from fender 45 65 85 110. The G en E fits right in the nut slots, but there is a little gap at the bottom for D and A. I am not sure I will keep this strings, so I was thinking not doing anything definitive to the nut, and though about sanding the string instead of the nut. I don't think it would kill the string, as they get more wear from the contact with the frets without ever breaking. Also some strings are way thinner at the bridge, and it doesn't really change the sound much. What do you think ?