I’ve been running the FCP’s for about 20k miles now on my 17 TRDORP without KDSS. 3.0/2.5” with stock weight springs in the struts and 600lb springs in the back (drawers/roof rack/moles and some other goodies in the back) On the road the ride is decent. Some dips and bumps are a little harsh. Taken at a 45* side angle they’ll smash your head into the window. Off-road they are downright harsh. People talk of washboard roads and I just avoid those. The truck will start walking sideways over 25mph. Off-road I run 16-18psi. After running Fins N Things, Hells Revenge, and Poison Spider trails in Moab I Nearly felt like I had whiplash. All of my Jeep people were smooth and easy the whole time and I felt like if I went over 2-3mph I was going to break something. I’ve got no leaks. And it’s all installed and adjusted properly. I’m honestly looking into other suspension at this point as I cannot enjoy the truck off-road, which is where I bought it to go.