[Bob Kontak]

After reading the link info JAR0023 posted, the backside makes sense now and I will try it next time. Wish I would have understood it fully in the past as it is an excellent double check for guys that do adjustments only once every couple of years on their own cars.

I don't think I would do it as the only check first time through but experience is a good teacher. I swore by a dial indicator until I was instructed (well, batch-slapped) and experienced the standard feeler gauge method. Dial indicator was a huge and needless time soak.