So yes, a newbee with setup issues. After lurking and reading tons of threads and watching all the setup vids I can, I still have no solution. Purchased a new fretless MIM Jazz Bass almost 3 weeks ago while in the states. Came back home to Mexico and am attempting to do the basic initial setup. I have about double the relief I would want on a fretted bass, so, much more than desired on a fretless. Action is tolerable, but far from fretless ideal. I tried to adjust the truss rod, turning clockwise to reduce/remove the relief. I could make a 1/8th turn relatively easily, a little change in relief, not much. The second 1/8th was difficult, less change in relief. Tried more, but it will not budge. I do not want to break it, but from what I read, this is not normal. I waited 24 hrs, no change in relief. Tried placing my foot in front, opposite knee behind, pushing headstock back and then tried to turn truss rod. Not budging. Slacked all strings and let it sit 24 hrs. Tried to adjust rod, no budging. Even though it had no string tension, I did the foot, knee, headstock push again, nada. It will turn CCW to add relief, a tad stiff at first, but then more easily, just tried it back to where we started. Then took it CW to remove that little bit of relief that I could. After all this, I did adjust the bridge height to minimize action height to just avoid unwanted buzzing. Nut, surprisingly, is pretty darned good and low, between 1-2 business cards. So, I CAN play it, but would prefer to reduce or eliminate the relief. What advice is out there for me to try. There are no trusted luthiers in our area, I checked with local pro musicians. Should have had the GC tech set it up at purchase but schedules did not allow. Me: engineer, woodworker, very mechanically inclined motorcyclist, expat who wishes to setup this great instrument without breaking it. Any help will be greatly appreciated. Something that gets me to a straight or nearly straight neck, even more.