I bumped my kid up a bracket for subs because he had a sudden growth spurt and was really pushing his normal bracket. Last year we fought weight the last couple of weeks and it made my son unhappy that wrestling was causing him to miss out on things he enjoyed... He's definately not overweight (9 years old and 64lbs), but when all of a sudden he grows an inch or two, I decided to wrestle him up a bracket. He's the low man on the bracket, but I'd rather him prove his potential at a higher weight than have to starve himself and get burnt out on the sport.