I dunno if its just coincidence or not but nearly every bass I've played recently that has a laminate neck, with the exception of maple with rosewood strips, has felt like the different woods have dried or swollen at different enough rates to cause the joints to be raised and not smooth. Minnesota is a tough place for guitars, very humid in summer and winter heating dries everything the other way. Its a vicious cycle we deal with. As of late I've played new and used Warwicks, Ibanez, and ESP/LTD basses with necks of different combinations of woods like wenge, bubinga, etc at different retailers all around town. I can tell you all but one of them had at least one spot where the seam was noticeably uneven to the touch. Is this a 'needs to be played in to smooth out' situation or a 'not a good match for changes in humidity' situation? I know the neck laminations give structural stability, but when the woods react differently to humidity it seems to cause a new problem altogether.