Will throw this in: After about 1500 miles driven singly, as in myself only, I had noted the bump steer and all the squirmy handling issues that have been observed. Had a friend join me for a nice run and the car was transformed! This was on the same local roads that I had been using and it was night and day. It behaved, the bump steer was noticeably diminished and diving into curves became much more predictable. Side note was that I was driving faster then before with much more confidence!
The added weight helped with the balance front to back as well as changing the steering geometry to what it's supposed to be.
My lady friend either has to join me full time or I will have to settle for weights...
