I can't give you the geometrics like I'm sure Elvo will, but, basically it keeps the car in the turn longer, I find on medium to high grip the car straightens up too quickly when you get on the power, so I run the shocks like this almost all the time, I also ru nthe front shocks on the inside hole on the tower aswell.
EDIT: I don't run my shocks on the back of the tower, I really must pay more attention
