On Fri, 26 Jun 2009 18:11:32 -0700, "Michael Koblic"
wrote:

I was puzzled by this poor result. I could not think of an explanation. Then
I measured the washer and it turns out to be out of round by 0.004".


2) Is the washer the most likely culprit?

Even though the washer is out of round, any three points on its outer
edge define a (perfect) circle. So, unless the washer is so wonky that
one of the jaws wasn't touching it, I don't see how it would make any
difference.

--
Ned Simmons