Sachs shock compression adjuster?

[SpeedyManiac]

Been fiddling with my suspension a bit on my new bike and am a little confused about the compression adjusters on the rear shock. Looks like there's high speed and low speed. I'd assume that high speed is the outer dial and the inner screw is the low speed adjuster. Seems simple enough.

Now, when I went to adjust them, they turn together. Then I noticed a little set screw on the outer adjuster that seems to lock the two adjusters together. I loosened this and then I could sort of move the adjusters independently. Seems like I need to set the outer adjuster, then hold the outer ring and set the inner adjuster, then tighten the set screw. I counted 14 clicks on the inner adjuster and the outer adjuster clicks too? I got 20 clicks on the outer adjuster.

Any tricks on adjusting this shock? I guess I should've stole the suspension off my bike in Greece. Bone stock that thing was absolute magic for me.