Mark was told to have 3 weeks rest. As downhilling is not exercise that meant he was fine for the Mega - just popped full of Iburofen (sp?)
Mega is a mad event, see the start here
http://www.youtube.com/watch?v=L51D8oI_1mEI will put some worms together for the entire trip and send them round - rather than reliving hundreds of tit bits to all