Koni yellow adj,owners

Does anyone have koni yellow?i had them installed and am wondering if they are adjustable on the car as it normaly sits? I mean do i have to jack up the car first to stiffen or to soften up my struts/shocks?I think clock wise is to stiffen?The front struts have a little flat tip is that where you adjust them?When i try to turn it i doesnt seen to wanna move,i dont want to force it to much so any help would be nice.Oh and im very happy with the ride quality,nice and tight.Actually ive been doing some research and it seems i set them at the softest! tee hee hee!!!! my set was used so i didnt get the pretty adjustment knobs they sell 2 kinds at kont any ideas wich ones i need? my struts are yellows single adjust