The valve screws on the KDSS block needs to be unwound approximately 2.5 turns but absolutely no more than 3 turns so that the front suspension can droop down more. The vehicle needs to be jacked up at the front to the point where both front wheels are lifted off the ground completely, before you can attempt to remove the front strut. The front sway bar will need to be disconnected to allow the lower wishbone to drop away further. Even with the sway bar disconnected, someone will need to stand on the front disc just to get the required amount of droop to be able to pull away the front strut assembly.
I consider the job of installing the spacer to be a two person job so if you don't have someone there to help you, don't even attempt to do this on your own. That's my experience, having to remove my front struts on 3 separate occasions.