Thanks for contributing and participating. Morgan is definitely one of the modern gurus of this stuff. I watch everything I can where he's involved. You may already know but he is cranking up some kind of pay per view program with Drag Boss Garage on Youtube.
Agree with you on the valve and seat angle stuff. It is amazing to me how just a few thousandths of an inch can make 10 cfm flow difference and can stabilize or destabilize a port. I've made a 2.5 deg change in a back angle on a valve and changed the flow curve pretty dramatically. It just tickles my innards.