I'll check vacuum too. Our smoke tester is out of smoke... for the past 2 weeks. Nobody stays on top of supplies and shop tools.
Oh yea I'm a mechanic. I don't get much time to work on this car, and half the time I forget to bring my tools home :P
the "miss" is there solid as rock. Never changes. The plug does fire. More or less the same color as the others. I can't put road miles on the car the way it is so it takes a while to get any coloration on new plugs.