The rear drivers side keeps on settling down lower and lower. I adjusted the spring collar once already after i drove around a bit to even out the back and it has dropped another 3/4" since then. There is probably a 1" difference between the drivers side collar and the passenger side.

Suspension is HKS RS coilovers.

the drivers side tends to be lower on the cars...you have coilovers so you can adjust the height. im on springs and the car settled 1/4" lower on the drivers side

I have already adjusted them as stated in my op. Im concerned about the total amount they have settled. 1/4-1/2" seems to be normal but im up a full 1" so far and the driver side still seems to be sinking.