if it aint your tires....
if it spins a lot coming out of turns, it could be a lot of things. first, make sure that your caster is set up correctly (use more caster for less exiting steering).
next, make sure all of your toe in/camber/shock settings are CONSISTENT!!! if they are unevenly balanced then it could throw your whole car into a crazy gyroscoping machine. try using less toe-in in the rear (1.5-2.0), and like 0.5 to 1.0 degree toe-out in front.
make sure your shocks are evenly damped (they have the same amount of oil in them). you know you put too much oil if the shaft rebounds when compressed (without the spring).
use less camber change (links are as flat as possible). -1.5 to -2.0 is good for the rear, -1 or maybe none at all for the front.
my reflex nt drives like its on rails on a crappy parking lot with lots of stuff on it. its got a SX12 MS 5 port on it (TOO MUCH POWER!!!)... my rear tires wear a lot faster than my front, and i am using purples all the way around. sometimes i can hear wheelspin (that hum that you hear in an electric car... yeah.. i get that when i floor it after coming out of a turn).
oh yeah, try swaybars in front/rear (not at the same time)