GenVibe - Community for Pontiac Vibe Enthusiasts

I'm thinking about lowering my vibe and I was wondering what would be a better buy Skunk 2 or Ground Control adjustables springs? I'm looking to lower my as much as possible without having too much of a harsh ride. Has anyone installed either one of them? How's the ride with them? Any input would be greatly appreciated.

ground controls are a better brand and less stiff than skunk2