JKS, they are awesome, easy to use and greasable. The rubicon electric disco still limits flex, I did test and mine and got a few inchs extra measuring from the wheel to the flare with the proper dico's
Best thing about the electric dico leaving it disconnected making it extremely easy to re connect the JKS sway bar links, then turn of E-Disco off after your all connected back up, no more worrying about being on level ground or anything like the non rubicons