HappyDaddy,
I don't think they have doubled the pool. Basically, any player that is U16 or below, defined to be 1991 or later birthdates can play with the U16 group. For the U18 group I believe that it's any player born 1989 or later can be in that group.
This age group is different because it's based on calendar year, but if a player in either system is eligible for U16 play, then they would also be age eligible for U18 play.
