So, I know this is a simple matter of geometry, but I'm being driven nuts by my low E string buzzing and could use some help if one or more of you would be so kind. A little context: the guitar is a telecaster that I built using a mighty mite body and neck, and all Fender licensed parts. I first assembled it a few years ago and the buzzing was bad enough everywhere that after raising the saddles I found the guitar unplayable. So I let it sit. Fast forward to a month ago when a friend of mine who is a luthier gave me some tips. I see him once a year, so he's not a regular resource for me. I bought a straight edge and rocker, straightened the truss rod to remove the neck relief and found that just as he suggested, the frets were not leveled by Mighty Mite. I leveled the frets, crowned them, and then used the rocker for every single string position to identify and eliminate the remaining raised frets. I checked again after crowning and repolishing everything. So, now the frets are level. I reinstalled the neck (I also tried with a .001" brass shim on the body side of the neck heel), set the neck relief to around .01", checked the nut slots and they are in line with what I've read is correct. All my measurements work out, from the relief, saddle height, fretting at 2nd fret to check 1st fret clearance, fretting at 1st and 15th to check relief clearance. But still the low E buzzes like mad when fretting between 5 and 13. I've tested with .001, .003, and .005 shims to raise the low E at the nut, I've raised the saddle (I'm using vintage brass saddles), nothing seems to help. Do any of you have any suggestions? I'm dying here, but really want to learn how to identify and fix this problem.