Hi all, I tried to adjust but slots for the first time, yesterday. Something unexpected happened: I carefully filed out the slots until I had 0.020’’ relief as measured over the 1st fret. According to the manual this was medium to high relief for the nut slot height. Relief was a little low for the wound strings, but perfect for the other strings. Then today I restrung the guitar. Now there is zero relief on the first fret on the high E. I’m pretty sure the string gauge was the same (0.09’’). I also took care to clean out the nut slots after filing. How did this happen? Was there some precaution I forgot to take? More importantly, is there a way to fill the nut slot? Or do I need to replace the whole nut?