Just received this today. Haven't had much time with it yet. It's been a number of years since playing upright and I'm looking forward to getting back into it. I'm having a little bit of a challenge with string buzz at the moment. The D buzzes like hell no matter how high I raise the string. It buzzes between open and 7th position. G string buzzes a bit too, but not nearly as much and only in the 4th-7th positions. I don't want to raise the height much further there if I don't need to. It has a fairly standard setup height from what I recall, from about 7.5mm on the G to 10mm on the E measured at the end of the fingerboard. With this setup, I'm worried about the bridge, because the bridge's low-string side adjuster is bottomed out at it's lowest while the high-string side has a 6-7mm gap. That's very uneven. So why the massive buzzing on D? Hmmm. Any ideas what I can do here? It's definitely quite a bit different than my NS Design CR4T, which has crazy low action with no buzz at all. Edit (1/27/2020): Took this into a bass luthier in Frankfurt and found there's a significant bump in the 6th position affecting all the strings, but the D string especially. It's quite visible with a straight edge. Getting that fixed. I'll also note that the neck is rather rough feeling. Almost unfinished. Getting that "fixed" as well. There were a couple other questionable things as well regarding fit and finish. Not super thrilled with the quality of this new 4k bass, but I'll withhold my full opinion until I get it back from the luthier.