Please put the link up again.... I'd love to see it.
I've been flying heli's for a couple of years now.... And they are tough!!! I witnessed a buddy of mine (who is an awesome pilot) fly his .30 size right into the back of his head... It was gruesome... Ambulance, Hospital, Staples in the head.
Note: don't try any nose-in stuff when you haven't flown in years!!