Honestly - I was afraid of the daily drivability of the car.. Even though i'm tracking quite often nowadays, I still have to drive it around SF city and commute work with it every single day.
After the installation though, the car rides very very smooth and compliant on city roads - you don't really compromise drivability at all with these coiovers and even with the 500/800 spring rates.
I might try out stiffer rates in the rear and work on the alignment a little more. I believe I can dial more camber into the car but had to reduce it because the car was very loose under hard high-speed braking...
Also, I discussed this with Harold at HP Autowerks who's been prepping my car for this past weekend's race and he said he has no issues to switch out my spring rates to a higher rate (900/1000) anytime. TC Kline share a storage area in the same compound as his shop so he has access to a lot of their stuff/knowledge... also they are the master distributors for SWIFT springs and they give pretty good deals on those.
Some pics of installation and the car this past weekend's race, will do a full write-up soon.