I didn't save the link only the text instructions from one of Billman's posts. It included the following:

1. Engine off
2. Push clutch to floor, release
3. Set dial indicator, pry crank forward and take reading. The crank will make a small audible clunk.

Just tried this now. I was able to pry crank forward with a plastic interior tool, didn't need to pull the belt.
Brand new proper build will move .004 to .010
.008 is perfect, up to .014 is good, max is .018.

As I said, I just used an "eye test" to check the amount of movement. I saw very little, but will have to buy a gauge to get an actual reading.