I'm just throwing this out there, but running over the limit could take all the fun out of the event for someone. I enjoy pushing the limit as much as the next person, but as a group, for a club event.....I wouldn't want to encourage anyone to break the law, or such behavior to result in a ticket or worse.
I may run a bit fast by myself, but when I have a group with me, I try to run at the speed limit.
But I won't be there, so my opinion isn't worth much.