My leaf springs from ESPO and the heavier-duty set from KC Spring all flattened.
I gave no thought to whether mine may have been reconditioned, and of course it's too late to tell, now.
I have wondered if I could use a leaf from one set to beef up the other. However, I don't want any lift - just stock,
with a little more load-carrying capacity.
The coils I got from ESPO worked too well - they lifted the front, which was not my intention.
Someone on the Forum got the non-ac coils and it seemed to bring his back to a more appropriate height. I'm strongly considering
doing that.