The Vettes bars are actually sprung, the springs are on the housing end, but they are adjustable and fairly stiff for sure. We really could use longer ones but car wont fit in the trailer if they get any longerand its already a process to cram in everything we need in a 22' trailer
I do agree in your observations on the way they leave for a long time the red car needed to leave the same way to work. We simply could not control the housing/tire enough with the old shocks. Back a few years ago when it was a pump gas full exhaust deal running 8.80's it needed the pitch to work.As power increased it certainly became an issue for us.