I had LC 9.25 warps, flex great and soft ride. I got about 4.5"-5" out of them with my usual weight. But when I loaded up for an extended wheeling/camping trip they would squat a few inches. I'm now running OME 861s and they are AWESOME! They flex completely to the bumpstops and carry the weight great. I had 4 days of provisions (10 gallons of water, food, Engel fridge, 10 gallons of gas in NATO cans, tools, spares, cooking gear and clothes for two). From my normal, the whole rig squatted only one inch. I call that success.
I have about 5" of lift with the 861s.
I just towed my ATV trailer (weighing about 3000# loaded) and the back squatted some but was not bad at all.
They are firmer but not bad at all.
(LC coils have a spring rate of 170-180#, OME 861 are 220#)