Ithe neck had a really big warp (too much relief). The truss rod is maxed out, can't be tightened any further, even with the neck in a vise to take pressure off of it. The neck was heated and put in a vise, which took about 60% of the bow out. It still has a warp and further heat won't help it. Mostly the heel is flipped upwards a bit, not an uncommon problem with bolt on necks.
So, I'm going to remove the fretboard, check out the truss rod and replace, unless I find a fixable issue with the current rod. Essentially, I'm going to lightly plane the face of the neck at the top 2-3 frets and the bottom 4-5 frets. Once I get it flat/levl, I'll install the new board. I was wanting a maple board anyway, so this is a good excuse to do this (besides the warp).
Not any other options with this neck, really!