Lastly, for now, are a couple pics of the measuring I referred to earlier. This is measuring the valve/piston clearance by putting modeling clay on piston, assembling engine and turning by hand, then removing head and checking:
The clearance turned-out to be perfectly fine w/o spacers, glad I did not just put them back in. Paul paid good money for a set of 9.25:1 forged pistons, it would suck to reduce the CR unnecessarily.