:lowest is not the same as stiffest. and if you think scraping all the time is "totally worth it" for the handelling improvement that you *should* only be seeing most of on the track, ie if you dont drive like a douche on the street; then you must not have a very nice paint job.
i hardly ever scrape at a 1" drop, unless its a really odd driveway and i cant take it at an angle. you dont have to drive hard to notice the difference between aftermarket suspension and stock. drive a pass at the speed limit is all you need. spring and shock upgrade was a huge difference, coilovers are in a different class for sure.