Ever since I had my car aligned for the first time back in the spring of 03, it has had this odd vagueness when passing over certain parts of certain roads, and when taking a sweeping left at high speed. I've never been able to track down the cause, but now I've got my FK 35/40mm kit installed, got an alignment, and I can feel the (stock size, 205/50-16") tires following every single bump in the road. What can I do to stop this? Will a rear sway bar do anything?