I had this question last season and ultimately went will the ar7. They seemed to be a better all around ski for both jumps and rails, and can even slay corduroy too. The punx would be great if you are mostly into rails because they're pretty flexy but I'm glad I chose the ar7. Also consider the line chronic
"Are you always this cocky?"
"Only on tuesdays... and when beautiful women are involved."
"You think I'm beautiful?!"
"Actually, it's tuesday."