As for you and your girlfriend going, definately go. Just *don't go fast* ... That's how I got beat up really badly. Falling over while moving slowly doesn't hurt at all. Falling over while doing 20+mph hurts like a b|tch.
However, this morning, I am actually able to move! I am not crippled for life! My muscles are really sore all over, but I don't have any bruising really, just lots of sore, sore hurting muscles. And a *really* hurting tailbone [slammed that baby into ground too many times.]
My opinion? I'd go again, if I didn't hurt like hell. I'd also make a promise to myself to not go fast.
kohutek