The sucking sound was the wind knocked out of me!!! The only good thing was that it taught me NEVER EVER breath when you hit the silt!!!!
I had a git off just like this one during the race about RM 30 or so in deep silt on a corner and just held my breath as long as I could and blew out as hard as I could to get everything out of the helmet
At the first rider change Sue took my helmet and Goggles to clean them, as we were driving to the next rider change Sue makes the comment "Boy it looks like you really eat some shit didn't you"
All I could say is yes I did