I picked up a Peavey T40 from eBay a few weeks ago and before anyone makes any comments on the bass, I have to say that I LOVE it in terms of feel and mostly in terms of sound. Very booming bottom end. While I can certainly learn more, I am not a noobie in terms of setup. I am continually fighting this bass, and am wondering if anyone has any ideas? The neck relief is almost perfect (very slight backbow) as described on the Gary Willis site, so I am treating this as an issue OTHER than the neck relief. There is a little less than a credit card's thickness between the 10th fret and the string when you fret at 1 and 20. I cannot get the action very low without buzzing up and down the fretboard, but that's not a HUGE concern for me, but there IS a serious issue at the 17-19 frets on the A and D strings. There is not just a buzz, but the 19th fret is the only one that is heard, meaning that if I fret at 17, what you hear is the 19th fret note. I have adjusted the micro-tilt neck to a point that seems correct, although I am wondering if this is where my problem lies. I have not had a micro-tilt neck before, but followed the detailed instructions here to a point where it seems to be set correctly (or close to it). I have been messing with this a great deal and am terribly frustrated. Anyone who can help would be GREATLY appreciated. FWIW... I am running my standard strings which are D'Addario XL170's , which are medium soft long scales. Thanks!