Ron, did they ever put a dial with some numbers on that excess flow valve?
I was working with a prototype awhile back and it was extremely difficult to dial in without a reference point.
When you went from carpet to tile work you were screwed.
And I hope they have come down in price a bit as well.
It's an Excellent idea.
Art has a good point, I don't think the valve would detect a pinhole leak, but going from 012 flow to 024 would pop it in a heartbeat.
Butlers comes the same as all other modern truckmounts, Goodyear Ineptune.