Ahhh, avalanche debris! It is, in my opinion, the worst skiing surface possible. I love crud, mashed potatoes, cascade cement, steep icy moguls. I can even have fun on re-frozen slush and breakable crust. But avalanche debris is ... special.
Is there any way at all to get through avalanche debris without a double release wipe out? My method has always been to try to traverse as slowly as possible until I'm out of the debris field. If that's not possible it's time for some embarrassing survival-mode skiing filled with hop turns.
I suspect that the answer might just be - stay away! But if there's any hints at all I would love to hear them.
Here's an illustrative photo, taken by a so called "friend" who was laughing at me while I was trying to pull my ski out from under a dishwasher sized chunk of debris. Grrrr.