Dana : I've yet to try it, but I witnessed Joe L. do so this past weekend .
Problem 1- following maneuver 5(Shark's Tooth, half roll on vertical, half rolls reversed on 45 down (T), there is insufficient time - if one remains within the box one must rush into maneuver 6(Avalanche with full Snap + or -) .
Problem 2- Maneuver 14-(cobra Roll, 1/2 roll up, pos. snap down ) - Again , there isn't much time unless one flies out of the box to smoothly enter maneuver 15 (1/2 Square, 2/4 roll up) T.
Problem 3- Maneuver 17 ( 1/2 rev Cuban from top, 1/2 roll on 45 (T) puts you out quite far- and high.
Naturally, I'm prefacing the mentioned issues on Advanced piloting abilities- with practice, the average advanced pilot will succeed, but we must be cognizant of space and height and things are being stretched a bit with this sequence.
You might want to talk to Joe and others after they've flown it. Joe believes that it is the most difficult Advanced sequence ever.