Best advice I can give you to get them to handle is to get some weight in it!

I got mine handling nice at club nights by running a brass bulkhead front and rear (Ghea ones), and some heavy lipos.
I also went up 5wt from the kit oil, and moved the shocks out at the bottom. I seem to remember that it was no.3 pistons in the front, and No.1's in the back.

HTH Dude! Oh...and make sure your tyres are in good nick...this makes a big difference IMO.

if you're running stock tires, take a dremel to the rears (only) and grind the outside edges off at about a 45-degree angle (get rid of the sharp edge). i think you'll find it helps the rearend rotate easier on high grip surfaces :)