Thanks for the input guys! I have to take a closer look tonight. I am trying to add some relief by loosening the truss rod on my fretless, and it sure seems like I am at the end of the travel on the nut of my rod.
If there's no tension on the rod but you still want more relief, then you could try a slightly heavier gauge string set (or a set with higher tension in the same gauges). That should pull the headstock up some more.
