Ground Control Coilover Question

the back of my sedan is a little high so i want to lower it a little when you go to lower it on the collar that you turn it has the arrow pointing left for down and the arrow pointing right for up which way do i turn it to lower the rear and also will it take long for the springs to settle.

Im guessing left?? You unscrew it to make it lower.

just unscrew the lock nut th where you want it and just unscrew the rest till it hits the lock nut and tightin it. if it says left = down, and right = up what do you think...