i love a bit of sideways action, although your uprated anti roll bars might cause it to slide more???
maybe just need to get it set up differently, im running d2 fully adjustable shocks, lowered onto the arches and i can chuck it around round abouts at 60, just on ****ty budget tyres aswell. but ive had it set up soe the camber is in, wears the insides out quickly but grips so well. and can still get the arse end out when i want too :P