Try little more camber, and less camberchange, little more shim on the rear camberlink.
Jilles
I tried this tips yesterday, I noticed significal change, especially with the shime on the rear camberlink (1mm more). More camber everywhere was good too, but not for the tires ! I put it back to a little more than 1,5° (I'll say 1,7°) and that was better for the tires, and no spilling on the rear end anymore.
Thanks !