This is just my opionion on this but I think that you should try to keep your kids from cutting more than 2# at the 6, 8, and 10 years old. My twins who wrestle 6u 49 started out the year at about 46.5 each and have actually gained weight through the year. I would guess that it is muscle because they both have twelve pack stomach's and embaras their dad when they walk around with their shirt off. My ten and under Tyler can loose any where from 1 to 1.5 pounds per practice but is never low enough to drop to the next class. I guess it is upt to the parents in the long run but shouldn't it be the kids choice an much as anything? I mean they arent' training for the olympics.