As previously stated, in this case an ARB would just hide the problem with the geometry, the only way it would "cure" it would for the ARB to totally restrict the movement of the suspension, and you don't want that, anyone who driven a quick kart on a bumpy track will know what that feels like
(Eh Mark)
Personnally, I'm still biased towards the Cortina upright, yes it's not perfect, but I have done a lot of work with it and have a wishbone set up that keeps the wheel in check during roll.
So, I guess it will be an intersting read to see what people come up with. Come on guys, get the thoughts down.
TK