We often see this type of question in this forum so I thought I'd provide some real feedback. I've been running bilstein sport shocks for the last 2+ years in autocross. Have been super happy with them. As my car got better (my skills still suck) I came to the realization my suspension needs improving. Currently running a full SoT front and 5 leaf rear and Maier panhard, w bilsteins sports all around on RE71s 235/45/17s all four corners (66 coupe). As I watched videos of runs I saw my front was loading and unloading allot under braking and acceleration. Spoke w gurus who said I need more rebound. In other words braking into a corner my shocks are not providing enough compression thus loading up my springs and unloading my rear, and exiting the turn my springs are releasing that stored energy due lack of rebound sometimes causing a push into the next turn or loose on exit. So what did I do over this season break? Picked up a set of Hotchkis APS adjustable 1.5s. Shocks are already out of the car so I did an immediate out of the box 190lb/5'10" test. Baseline, the sport shocks fully compress at roughly 8 seconds, and full rebound takes 7 seconds. The hochkis fully soft takes 8-9 seconds to fully compress and same to rebound, but full firm takes 14 seconds to compress and an insane 20+ seconds to fully rebound. I guess I wont have any excuses for my suck driving after this and will have to improve my skills cuz I'm running out of excuses.