9-6-2 is ideal and throw a couple of alternates on top of that. Once we hit Thanksgiving the numbers every week bounce all over the place. U14 is no longer about the league games but rather focusing on HS hockey prep. Practice and game structure should have a HS format including playing time and discipline.
good luck going with 9-6-2 buddy come high school you'll be playing with 6-3-1 at games unless you have all 8th graders. That will really get them ready for high school you moron. My kids team had 22 skaters on it and parents complained about it once December 12TH came we barely had 8-4-1 at games and practices became skill sessions with 6 guys on the ice.