Not that hard. Mine uses the 20vT lump tuned up to maximum (though it slides nicely with a LOT less power, btw the vr6 lumps all make them too understeery I find), 4wd and then its pretty much get the 2 way diff on, set front accel to 25% with 0% on decel and set rear accel and decel to 100% with all the power going to the rear. It will now slide regardless and you just need to find a spring/roll bar/damping balance you can work with. If the back wont grip booting it out of the corners, add camber on the rear until happy again (I use 1-1.2 deg rear and 1.5deg front). Its very much a handbrake in and power out setup but its fun in a "feels like im driving a group B car" sort of way.