I too run the SR springs and am very happy with them. I am running them with stock shocks/struts, as I installed them with fewer than 8K miles on my car. The ride is excellent, maybe a touch firmer than stock, but it's certainly not harsh. Body motion is much better controlled than with the stock springs - much less nose dive upon hard braking, much less front end lift upon hard acceleration. Drop was pretty consistent with what they advertise - roughly 1.5" f/r.
'14 V6 Prem. 6 speed Perf. Pkg. Oxford White/Saddle
Mods in profile