Thanks - was just a silly fall, but one of those where you fall directly on the head/shoulder without being able to roll with it.
What I think I do
http://ep1.pinkbike.org/p4pb10174966/p4pb10174966.jpg
NO HOTLINKING
What I actually do:
What I think I do
http://ep1.pinkbike.org/p4pb10174966/p4pb10174966.jpg
NO HOTLINKING
What I actually do: