I have the older style 6112's with fewer clips. I used the second clip and got 1.6" lift. The rear I put a 10mm spacer to have a 1.5" rake. This makes the sliders level, but the rear wheel gap is larger. I think it's that way by design. If you want exact same wheel gap you will need to go higher.

Question: What don't you like about the Kings? I have had 6112/5160 for three years and was thinking of switching to Kings (550# spring). I find the 6112s ride rough around town. I know ride quality is somewhat personal, but my wife hates the 6112s. It seems like they have too little rebound damping for my liking. Compression seems nice on the highway, but at slow and high speeds it rebounds way too quickly which creates a 'thrown around' feeling.