Hello i give you a link on 2 videos for the first time, i'm french i have flown in many countries during my hollydays, but these vidéos have been recorded in France
The first one other the clouds and the second during a SIV at Annecy with Nucléon wing (it's the better way to know your wing and how to fly with collapses).
As you can see on the second video, the Nucléon flies very well with 50% collapse.
[youtubevideo]
[/youtubevideo] [youtubevideo]
[/youtubevideo]