Re 28 Nationals. We played them this summer. My hindsight ~estimate is 20-25 kids on roster. It was heavily populated by Next Level and Hawks kids. I didn't recognize the other helmets. They were pretty average IMO.
I do know that the Nationals coach approached at least 2 players on my son's team after one of our games and asked them to play for Nationals. I repeat, players, not the parents of yet-to-be 6th graders. Pretty creepy. | 
