SM Head Modifications on a budget

Perhaps after this thread has run it’s course, EA could run a series of tests on the cnc ported SM head he has……..using what’s been learned here regarding the valve & valve job situation.

I know it’s never a good idea to compare results from different benches, but the one pair of SBM CNC SM’s I had here put up numbers on my bench(ootb) that were considerably higher than what he saw.
I wonder if that’s a result of a different cnc program, different valve job, different flow bench……..or a bit of all three?