So I found these on ebay for $129 shipped. Figured I couldn't go wrong with drop springs for $129. I didn't want the rear end to sit too high (website shows 1.2 F / 1.1 R) but I've got some extra weight back there so I figured I'd give them a go. I did take before measurements, but I didn't take after. Figured I'd give them a few weeks to settle in. It sure does corner flat, much less body roll and the ride is not bad at all.
Before:
After:
Other Side (cleaned up):
Extra Weight (Project I did last Jan. Took this stuff out of my truck when I sold it, figured I'd put it good use in the Sonic):
Covered: