Im totally aware of the principle. The only thing I point is that I have no idea how to achieve that with the parts included into the ARTS kit...
Ok so pictures...
The first one is a picture of it should be mounted on the D09, with the included parts:
This photo shows how I'm using the ARTS, following the advices of an official VBC driver from France, which explains me that's how they were used to mount ARTS on D08:
Now the comparison, you can clearly see that on the rear right arm the angle with the arm is the opposite of what you could want...
And here how the D08-style installation has a proper angle:
You can also see on the top first picture that steering stands are used in the ARTS kit...
So, at the end, when you compress the shocks, you have +0.5° with the D08 installation and -0.5° with the D09 installation.
I've also tried to put the ball above the knuckles to get the link with a proper angle but it is excessive and you get something like +2° on compression.
You can't add shims on the steering stands enough because it will touch the upper deck
You can't use lower support for the insid ball because it will touch the belt...
Seriously, what were they trying to achieve there???