Well it is Paul Harvey Time: "And now, for the rest of the story".
Took the offending head and had the seat dressed with a stone. All but a tiny amount of pitting remained. My man's valve grinder crapped out so we repaired to the lathe and cut the valve face down to only the smallet indication of a pit remained in
the centre of the seat area. Head tested on a clever home made vacuum rig, no leak at all.
Returned to the FBO and carefully lapped in all the other valves simply to assure that I wasn't missing anything. Assembled head and implanted on bike. Hat tip to Maylar for the foam and string routine. It really did go in easily.
Torqued it all down using ARP poop. Used torque wench
However the question remained how much, if any, to reduce the factory call out. Having pulled the head studs out of my Fullauto head with the greatest of ease, I am once burned twice learned.
Went for 20% less. And even that is scary when you are pulling down on those studs. This is a RH10 head and I had JC put in helicoils some years ago. I should have gone with his bullet proof inserts but not sure if he was offering that then.
Started first kick. Ran it until it got hot. Tomorrow I'll retorque. Ride out will be when the WX allows.
To be continued....