Ive driven a DC5 with the eibach pro's, and I have the S techs recently fitted to mine as of xmas. Both had/have a FRSU, and both are very responsive in the corners.
The Eibach pro kit rode really really well, ironing out most of the little bumps in the road at normal town and A road speeds, and still retaned a very confident drive over oem. After then getting back into mine which at the time had a standard setup I could feel a massive difference so it prompted me to get some. I had my choices laid out in front of me, and after originally getting spoons, (turned out to be the wrong ones) I had to get a set of Teins. I couldn't get on with looking at my car with a reverse rake effect nomatter how good the eibach springs were to drive on. Sounds stupid but thats why I went for the Teins, nice and level. They are a firm ride compared with the Eibach, but almost identical in feel to the Oem setup around town. So abit crashy etc, but where they are good is in the corners and on the motorway/A roads. They iron out bumps beautifuly, about the same as the eibach do. Both are progressive in design so thats the idea with them, smooth on road, hard in corners.
So to sum it up,...
Eibach -
very comfy,
good handling and road holding,
uneven rake on the cars height. (lower on the back to the front)
Great feedback when driving,
Handling is sublime with a FRSU
Teins -
Same crashy ride as Oem at slow speeds, comfortable and more complaint at speed than standard, but harder than the eibach,
Level ride height but not stupidly low you cant go over bumps,
Handle supurb with a FRSU,
It depends how your roads are, im in the country side with very poor roads, mines a daily and I changed to the Teins without telling the misses. After a drive she felt the ride was comfier above say 40/50mph but felt no difference at town driving. Lol I still just avoid potholes like the plague. Haha
Hope this helps. I can get a decent side shot up for you tomorrow.