FMS 1.6 install ?

[DiabloLX]

I'm installing these 1.6 FMS rr stud mount on AFR 165 cc.
Here is the Question.
I place the rocker on the stud (on cylinder on its compression stroke), tighten the adjuster nut till I feel resistance while turning the pushrod. One resistance is felt 1/2 turn more, then lock with the set screw. My question is I notice the spring start to compress a litte when I do the 1/2 turn from zero lash, is this Okay????????

Thanks.


added info:
Once the rockers on a cylinder are set up. Then, you turn the engine to next firing order the rocker on a cylinder already installed get loose (able to wiggle rocker from side to side, just alittle not much). Is this also normal????