I went through the exact same scientific process (but want 2" of lift) and ended up flipping onto the Eibiach coils + Rancho RS9000XL shocks. I too will wait for the new setup...I finally kinda just flipped a coin, a couple of times but I had decided on the Rubicon express 2.5 with the mono tube shocks. I really only want 2.5" of lift and I want springs but I run light so I know I'll get more. I'm in no hurry so I'll wait and see what this new set up will bring.
YepOem springs are linear, from reading this it seems these will be "tri rate"
Does anybody have any sense for how these will compare to the Synergy 2" Progressive Coils?https://www.facebook.com/RKSuspension/posts/620614204625510
Triple rate ?
In trial but looks like another great option for our JK's.