Hey Cylinder heads guys- advice needed

When I was doing stage 6 heads pretty regularly, those things had all kinds of factory machining problems.
It wasn’t at all uncommon for there to be a .060” tip height variance between a pair of heads....... as they came, right ootb.
And I don’t necessarily mean between one head vs the other head....... I just mean between the 16 valves.
There could be a .030-.040” variance between the intake valves...... on one head.
There was no rhyme or reason to how deep the seats were.
A set where the tip heights only varied .030” was a rare treat.

From what I’ve heard, W5’s(or what I like to refer to them as......the stage 6 of the SB world) had similar issues.

No reason to assume that same kind of “quality” didn’t find its way into some W2’s........ especially when you’re dealing with 2 different part number heads.