bassbass wrote: ↑09 Jul 2018, 22:16Yeah most factory stuff is on the high side, and with low and mid-priced stuff, the angles are also often a bit dodgy. But yeah, they have to put the guitar on the wall in a shop and have it play ok with all sorts of players. Especially all those guys that pick it up and slap the crap out of it in the key of E.Plus, with shipping, the action moves around a bit and it has to cope with this.
If your nut sots are too low, you don't just get open string buzz, but you can often get buzz from the length of string between the nut and the fretted note. This is due to the relief in the neck.
If you are going to file your slots, you should be sure to push the low B and E strings down on either side of the nut once they are up to pitch. This is to kink the string at the nut otherwise it will sit up higher than it should.
There's a little bit on nut slots in one of my YT vids. Skip to 9:40... https://www.youtube.com/watch?v=79BxNW4F6Qc

Agreed. Informative, helpful and well presented, without cluttering. Just how they should be.