I was thinking of that today actually, as I was telling my niece how I signed up and started my team on the first day registration opened just so the team was ready to go when/if the 1/2 off day came along.

I would imagine though, that you can sign up individually. Then when you set up a team, people already signed up can join it. However, I haven't done that and so I can't be certain. I have learned that what makes sense, isn't always what is true. It just seems to me that it would make sense that someone already registered can join a team at a later date.

I have a couple on the fence too, mainly due to my soon to be born nephew. I'm trying to convince folks to go ahead and sign up and if they end up not being able to go, well they donated $25 to a good cause.