I've been running the stock suspension with Swift lowering springs for the past two years. While I was satisfied with the Swift springs initially, I noticed that while the ride was comfortable, the rear end felt mushy with wallowing when hitting dips mid-turn in sweepers. Road bumps and dips caused my car to bounce around. I spoke to @
CSG Mike about it after reading this thread and purchased a set of Tein Flex Z coilovers from CSG after discussing it with him. They arrived a couple of days after paying (I'm local in socal though).
I just got them installed today and the difference is immediately noticeable.
Immediately after install, I felt that the suspension was firmer, yet the ride was smoother during the test drive. Road noise was reduced as well - most noticeably on the freeway. Ride height is approximately 1/4" lower than the Swift lowering springs, which is still a practical height without any rubbing. I didn't want it slammed. I'm going to be adjusting the settings based on my daily route to work over the next week or so, but I'm starting out with soft settings right now. So far, I'm happy with how it feels even without changing the settings - what a big improvement over what I had. It now feels much closer to what I imagined/hoped it would. Thanks to @
CSG David and CSG Mike! (and also to West End Alignment who did the install, align and corner balance).