One thing that gets allot fo people into trouble when the backend starts to come out, is lifting or lifting and then braking while they correct steer. BAD IDEA. With a 90" wheelbase it'll snap around on you the other way and you'll end up off the road in exactly the direction you were corrective steering...Keep your foot in it just enough to control the slide and then lift GRADUALLY to straighten it out. Basically just be SMOOTH, any quick steering input or quick gas/brake changes upsets such a twitchy car; and it WILL snap around on you before you can do anything - I don't care how good of a driver you are. Best to test this on the skidpad and get used to steering the car with your right foot while making small gradual steering changes. That way if/when it ever happens to you, you just instinctually know how to control it. Just make sure you put a diaper on the passanger seat for your friend -
Congrats, and enjoy...