Are you running ProComp 3.5" leafs?

I've got em. Had em about two weeks. When I installed them they were actually giving me about a 5" lift. They have since settled and the Cherokee looks level.
Here is my issue. How are they running over the long run?
My buddy has the same lift as me (3" Trailmaster coils and 3.5" pro comp leafs) and he ended up having to put 2" lift shackles out back to relevel out the rear. Granted he has a rear tire carrier and winch bumper but his Cherokee sits lower than mine with 3.5" leafs + 2" shackles.
Are these leafs known to sag so quickly? I'd say he has a years worth of wheeling on them.
What's your experience with your pro comp leafs?
I'll attach pics of day 1 leaf height and current ride height on my rig
. http://images.tapatalk-cdn.com/15/05...d941148e05.jpg
http://images.tapatalk-cdn.com/15/05...d9c6b396d5.jpg


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I understand your potential frustration. Things have changed in the spring industry in the last ten years. It used to be that springs were forged hot and hardened then softened a little. It took a full day to make them. Now with new alloys and processes it is done cold. And, they can settle afterwards. I don't have any experience with pro comp, but it is an industry standard for aftermarket springs to settle. I think you will have to wait and see.