Freak,
What's up my Candian Friend? One other thing to consider is how you feel when you fly. Some guys want a little fear and some guys prefer to wear diapers during every flight. The extra is gonna be the most slippery and the four star most comfortable. I've had all three at one point or another. I'd say if you got "Stones" go Chipmonk, if you want to learn at a good pace then 4*, put that Extra on the back burner for a little while. Don't get me wrong though, sounds like you could handle the Chip.

One last thing, if at times your a little heavy on the sticks, the Ex and the Chip will fight you a little. IF your too slow on a loop and pull a little too much they will snap out on the way up at about the 2 o'clock position. First time it happens its a little "HOLY MONKEY..." ish, if you know what I mean. Let us know what you do buddy.