I don't know two diff head, two diff benches, two diff operators...about 5% diff between them, valve jobs,core shifts could account for some of that....
Dewayne does good work for sure, I have went to him for more than a few things too. He is a smart man, too bad he doesn't frequent the board more often now..

I don't get too hung up on numbers, what does matter is how the head porters heads run at the track..and I know the end results...