http://www.youtube.com/watch?feature=pl ... swZfhY_Y7E
The first 50 seconds or so are some random shots of reasonably good riders going through various parts of the course.
Then around 50 seconds in, we come to a log crossing in a very muddy area and see a few riders struggle to ride over it.
Around the 1:09 mark, David Knight shows us how he does it...
WOW!
