nah, i count all the way left as 1 then all the way right as 30.
I just done 15 clicks from all the way left.
As for the preload, i followed a video on youtube by bc racing, he loosened the spring all the way, then tightened it by hand until he couldnt anymore, then he measured 4mm and tightened to that.
I really do appreciate your help, thank you.