were just saying dont expect to be in the fast group cuz of those reasons. it's like i said people may start w/ one group but move up by the end of the day, it could be someone wit a d15 or a k20. it just all depends on the judgement of the leader of the group. if the leader of a slower group thinks someone is faster than the group they are in, but is keeping a safe pace they may be able to move up depending on the size the next group. leaders will be people who have experience, will not be doin stupid sh1t like crossing dubble lines etc...