Sorry, haven't been on in a while, or I would have responded sooner. I can't speak for other progressive rate springs, but the metal cloak's are sweet! When the guys said it would settle to a finished height of between 15" & 15.75" based on the description of my equipment, they were dead on. Settled spring height is 15.75". I have a stock bumper, 9500# winch and some skid plates, so not a ton of extra weight on the front. The old springs were by a big name company that starts with an S and I had to replace the rear springs last year b/c I was sick of my jeep riding on the bump stops b/c the springs had sagged so badly. The front set was holding up to the original 2.5" lift height, but the poly spacers were shot and the ride of the red springs was BAD. The orig lift had heim-joint control arms, and combining those with the springs, it was getting tooth rattling. In the spring I swapped to a full set of Metal Cloak control arms b/c the rear heims were starting to rattle from wear. The new CA's where a huge improvement in ride, but having OME springs in the rear and the SJ's in the front was a terrible match. The MC front springs are an excellent match to the OME rears (which are 2" lift sitting on spring relocators that add 1.5" of lift so MC's were also the best spring to match ride height.) Call the guys at metal cloak, talk about your set up and they can tell you how their parts will fit your needs (or not I suppose) I just got their front track bar too to upgrade from the factory one, but don't have it installed to review it.