I just replaced the original round-wound light(?) gauge on my Yamaha bass. I put on a set of La Bella Deep Talkin' Bass # 0760M. .052 .073 .095 .110. Better sound,but... These do bottom out in the nut and protrude a bit above. Here's a pic: There appears to be enough nut to file out a bit for each string - more nut than there is string above it. Could I use the old round-wound E-string to file the groove lower? Or should I use a needle file? This bass is a low-end model I'm experimenting with, seeing if I can make the OEM nut work without replacing it. Thanks for any help.