Boots,
What valving are your running on your 5125's and 7100's?
The 7100s up front are valved at 400/80 and are just about perfect for me with my long springs, shackle angle, and heavy diesel.
The 5125 out back are valved at 255/70 and are too soft for my set up. I do plan on changing my rear shackle angle a tad to firm it up just a little.