I've been reading the shoebox website on how you adjust polylocs. From what I made of it, you just adjust the nut with the allen lock backed off of it until the nut stops and then you just run the allen set screw all the way down and thats it. But then it talks about marking the nut with a dab of white paint too see how far the nut has been turned to set the preload. So i'm a little confused on that one, why would you mark the nut if you are already at 0 lash? Is it even possible to incorrectly adjust polylocks and go past 0 lash???

 

At zero lash you have no lifter preload. The lifter preload depends on the thread of the stud you are using and your rocker ratio. What preload do you need? The dab of paint is probably to measure the lifter preload by counting turns or partial turns.

 

What's the site?