I've beeen using this D for 5 yrs. and last year at the 11 & 12 yrs old division we shut out 5 teams and only allowed 5 TD's. I mix in a 5-4 and this works really well. There's not too many youth tams that are going to pass at this level so you can put 8-9 guys in the box. And even if they spread it out you can match up man-to-man.... Good luck