Super psyched when I saw this, I've been waiting for a Hexxit update for a very, very long time. Many, many thanks to the dev team.
However, is it just me, or is that 'crazy' ore generation from Hexxit missing? I compared the cofh configs myself and they're identical to the old Hexxit, but it's definitely obvious if you go and lob a bunch of TNT under a few dozen layers of stone— there's a comparitively serious lack of ores. I had a semi-functional Hexxit-ish 1.6.4 version that a friend and I mashed together at one point, and for some reason I seem to recall we had issues with this before. Still, the config that I wound up using is again the exact same as Hexxit 1 and 2. Does anyone else notice this, or am I just crazy? Or just incredibly unlucky?
Edit: Also, the Witchwood trees from Ars Magica aren't in the Treecapitator list. I would assume that by association any other trees added by this mod aren't, either.