For my first foray into Tele-style guitars, I just bought a new (2019) G&L USA-made ASAT Special. I really like everything about this guitar, except it appears to exhibit a fair amount of fret buzz on the low (wound) strings. The worst is the A-string, particularly around frets two through seven or eight. This was purchased brand new online. The seller did a set-up before shipping, but I can expect some geometry change due to different climates (southern California versus Chicago). I have done a little tweaking of the truss rod, both tightening it and loosening it. I have increased the string height. But I can't seem to tame the buzzing. As this is brand new, and USA G&L guitars are Plek'ed at the factory, I am assuming the fret work should be perfect. This is my first time messing with a guitar's geometry adjustments, but I feel like the setup is reasonable. Initially, the height of the low-E at the 12th fret was 5/64 of an inch (G&L factory height); I have upped it to about 6/64, according to my string action gauge. I upped the A- and D-strings the same amount. I really don't want to go any higher. I put a capo on the first fret and fretted the last fret, and used my feeler gauge to measure the distance between the low-E and 8th fret (to check relief): came up with about 0.013" or 0.014", but I've also tried with adding or subtracting 0.001". When the strings are open, I don't get any buzz, except on that A string on a fairly hard strum. But almost all fretted notes buzz on all wound strings, and it's worse towards the nut-end of the neck. Here is a video I made that demonstrates the buzz/rattle. This is just a quick cellphone video, but you can hear the buzz plainly. I've researched this a bit, and it seems to be a somewhat polarizing topic, with some people saying all guitars do it, and others saying no guitar should ever do it. But it's hard to quantify any of that without measurements of the setup and videos of people playing. I.e., if I play with a very delicate touch, it doesn't happen. It doesn't seem to come through a normal amp, but it does come through a little on headphones when playing on a headphone amp (Mooer GE-200). I have two other guitars for comparison, a 1999 Gibson Les Paul Standard, and a 2016 Kiesel CT324. Both have only the slightest amount of fret buzz, and only when strummed fairly aggressively. Both also have lower action than the G&L. Lastly, I'm not 100% sure this is actually fret buzz, but I don't know what else it would be. I have held the guitar up to the light, where I can see the "light gap" between the string and frets, and strummed, causing the buzz. But I can't see the string actually hitting any frets. I've also even tried using my continuity meter to see if it detects contact between the string and the frets. If it's truly hitting the fret, it's too quick for my eye to see and the meter to pick up. But I've also checked all over the guitar for sources of rattle, and can't pinpoint it. Thank you for any thoughts or suggestions!