Uhhhh. What??? A 2009 anything playing against a 2011 is already a double holdback.

A august 2010 would be considered a holdback, even if they were august 29th. Which is the root of the whole issue. If they never allow kids who were held back at preschool to play with their classmates then they will not have a team or be asked to join an established team in 8th grade. Or whenever.

A September 2009 is an on age 27