The stories on Dunkeld are pretty epic, but there are a lot of stories about people flying over the bars on steep rocks, its not as inclusive, its not in England (I know this is apparently an unofficial rule) and its been done before just 5 years ago.
I've also spoken to Dave Pearce, seeing as he is in charge of a large % of English tracks, and BUCS haven't contacted him, so it isn't at a Pearce track.