As an express parent to be fair we have a fair number of boys that should be 6th graders a minimum of 5. This issue is really not an issue an old 5th grader w a team of 4th graders is not against the rules and for us a few old 5th graders w a team of 5th graders all in the 5th grade bracket. There are a ton of kids that either were held back or started late that play grade level.
