Long story short I've had them in my car for about two years and I'm just sick of how stiff they are set. I adjusted the front ones no problem but when I checked the rears one was missing the red cap and the other red cap was very loose and turned easily. How do I make sure that the red cap is on the correct way to ensure that the settings are aligned correctly? Searched all over and can't figure it out. Thanks guys!

 

There is a flat spot on the cap which will align with the flat spot on the threaded top of the strut/shock. You can bend the cap's flat spot slightly to make it fit snug so it doesn't move. Swap the cap from each rear to adjust the one with the missing cap.

Illuminas ride really smooth on 2, more sorty on 3 and get get nice and firm with 4 or 5.
I used to run the rears at 3 and the fronts on 2. Was a really nice ride with pretty descent handling with the rear a bit tighter.

 

Wow I guess I wasn't far enough into the trunk to notice the flat edge on the screw. Ill check it out when I get home thanks a lot!