well the schumacher rep has fitted them wrong for a start.
Normally you should cut the wheel down (width) to the next rib. and not run an insert.
Shorten the front link on the hub.
Give yourself negative camber. this positive camber will make things worse.
more the front shocks out on the arm.
Load your car up with Rudebits Brass.....
80g under lipo
heavy under servo.
and you will be fine!
Lee