All,

I got my fabricator pal to look at the video and he also believes there is either something binding or something loose working like a hinge. The plan is to inspect everything including down checking the shell. With all that said we will be installing a lateral location device because it won't do any harm. When I get it on track we'll disconnect each component and notemthe effect.

My reason for think lateral movement is it does "feel" like something in the back is moving, having experienced the bottoming in the Miata it just doesn't feel the same.

Simon please explain uncoupling the springs, I think I know but not sure. Also you are correct making the car more predictable will let the driver get the last bit out of the car. It's not the car is way faster it's just that you can zero in on maximum grip immediately. I am pretty good at catching a car but doing that 12 times a lap for 15 laps is going to result in losing time even if it is only a couple of tenths.

Harry I am a big fan of low buck low tech ingenuity; case in point was my old Volvo 144 car that I used for rallycross. The suspension was a mix of other model stock parts, 164 front springs, wagon rear springs etc. I even ran used rally tires. I kicked butt with it, many a Subaru driver were left wonder how the old brick went so well.

Tom