So I have these on a 93 rx7. I know somewhat the basics of coilovers with the two rings adjusting the spring height. These things though have these 2 nuts on the top that can rotate, as well as a small flathead screw with 1-10 on it. What the hell are the two top adjustments? I'm guessing some type of dampning, but couldn't find any info online as far as adjustments.