I've seen those guys at the MTB 24 hour races and at the Cristalp.
They throw a lot of money at those events and they are a bit lary.
I noticed during a changeover at about 3am at last years Mountain mayhem they were using radios and they had helpers keeping track of times of other teams as well as there own.
I'm not sure where I'm going with this....
I realised that there were people throwing more money at it than I was willing to anyway.