How much full time weight are you hauling? I was running pretty light over all. Slim bumper up front. Rear bumper was pretty heavy. I was carrying way too many tools. I liked the 419/863J combo except when I was fully loaded and then my rear squatted more than I thought it should. Looking back now I probably should have went with a 422 in the rear. I really do like that Kurt posted up all this information on the spring rates as it has taken out some of the mystery of the OME suspension with names like light, medium, heavy. But it has also caused me some problems as I have a complete new J spring/L shock combo sitting on the shelf for my FJ68 project and now I'm beginning to wonder if I want something different.