Our team finished in 6th place with a time of 7:21.48
I was a Cat 3 at the time. I'd like to try it now knowing what I do now.
My legs hurt for weeks afterward. Luckily, it's held in the Fall at the end of the season.
The hardest part of this sort of an event is finding three other guys who can commit to doing it. There's nothing worse than going through all the training and preparation only to have someone crap out on you just days before the event.
You have to commit months in advance and then follow through.
Perhaps the coolest part comes at the 150-mile point when you start pushing each other...not physically, though that's not a bad idea.