Team Sign Up

I recently learned that there is no way to limit how large a team can be when someone registers on their own. For example, if I have 60 open spots on Saturday, a person can on their own create a team and reserve up to 60 spots. 

This is a major inconvenience for me for a few reasons. 

1. I want groups of a certain size to contact me so that I can do a proper intake/assessment of them to prepare them and my team better for their arrival. 

2. I don't want teams to be able to scoop up as many spots as they want because then individual volunteers lose out on the opportunity. Also, team leaders tend to over estimate how many spots they truly need.

I think this would be a great feature to add.