Quoted from jeffc:
My approach is to not worry about it. Just clean and adjust everything and then make the spring only as strong as needed to reset the unit from the 1st step back to the zero/reset position. I'm not familiar with all manufacturers, but 3-4 is what I usually end up with.
Exactly. Not rocket science, just common sense. too weak, tighten it a turn, too strong, back it off.
Clay made too big a deal of it in his guide. It's nothing really.