And I can say without a doubt the Skyjacker 7000's > RE twin tubes. The SJ's in a nutshell eliminated the jarring ride the RE's gave. Sure, it still doesn't ride like an old Caddy nor did I expect it too, but the ride is substantially better. It floats much better over speed bumps, without the feeling the rear end is going to come off the ground. There are some speed "humps" in my neighborhood and I can drive over them at a greater speed, and its pretty smooth while doing it.
I read some negative reviews on the SJ's, but I haven't experienced any of it, from nose diving on braking, to feeling unstable at highway speeds, as a matter of fact, I drove it down the freeway this morning to work at speeds between 65-70mph and it felt completely stable, no less so than with the RE's. I think it leans just a touch more on corners, but just barely, and nothing at all to be concerned with. The super flat cornering was about the only plus to the RE's.
The install was pretty easy too, I didn't remove any of the tires or anything, just did it in the driveway with all the tires on. Luckily in AZ, rust is not an issue so the old shocks came out without incident, I didn't even spray them with PB blaster or anything. Even getting the bushings and bar pins in with a rubber mallet was not bad.
I had considered going with Zone Hydro's, but having not had my PM to XTRyan answered that I sent last Friday, and seeing that shipping from Zone was sort of steep, I decided to go with the SJ's, and am not regretting it. I read later that Zone offers free shipping to JF members, but if that is true, I didn't know it at the time.
So if anyone is still riding on crappy super stiff shocks, about $140 will make your life considerably better.