Congrats on an awesome buck! I'm still amazed, and quite happy, that so many hunters are not attracted to short massive bucks. I suppose it leaves more Booners in the field for those of us that don't want to fight the early crowds.
Congratulations. It really is amazing how difficult it is to judge them. At first glance I would have said mid 70's on that buck.
Looking at the measurements he gets all his "extra" in the mass numbers above the prong. Normally those are 2.5" or 3" on the measurement just above the prong and then sometimes under 2" on the very top measurement.