That looks pretty rough. How steep is it? I dunno if the wall was quite as rough (it certainly had some rough bits) but it is pretty steep.
Plenty of throttle was the name of the game. Both me and a 1150GS rider (on his 2nd attempt) got air going up the wall and over a rocky lump.
Wish the GoPro battery had hung in just 5 minutes longer - you'll never believe me but it actually went flat just after I started the bike at the bottom of the wall. If I had had a better idea of what the 42nd was going to be like I wouldn't have videoed any of Fishers Track (even though it was great fun and a bit tricky in places), I would have instead recorded all of the 42nd.