In our earlier round of discussions many months ago, ACE, I raised the question (which I am tossing in to the ring again now) as to whether , once a production head has been hand ported, it could be translated into a CNC template to simplify future head work: Even if a rough gouge out could be done by robot it seems to me there may be economies possible by doing that and fine tuning by hand to smooth out surfaces and perhaps even some bench test refining of the partially CNC carved heads. I am not sure who owns the guinea pig bike and whether they see their's as a labour of love for the commuity. Maybe , they could receive a small "royalty" for subsequent buyers that benefit from their groundbreaking costs. Possibly even could be a head port option A and B : Hand ported vs Machine copy without further refinement offered as two different levels of cost. If you remember, we discussed the possibility of a head exchange program where you send in your stock head and receive in return a ported and revalved head. If the project flies, you would need an inventory of at least one head to get it rolling.