Weight allowances are common in wrestling (check the college & high school situations and allowances). Take into account the following...
2 lbs. for normal equipment
1 lb. for special equipment (knee/elbow braces, mouthpiece, facemask, etc...)
1 lb. for consecutive day of competition i.e., AJ's situation (possibly even 2 lbs. per IHSAA rules)1 lb. margin of error for kids who don't have certified scales to check on prior to weigh-in
5 lbs. total not that far fetched.
At this point high schools may recieve a total of a 4 pound allowance (from scratch weight), 2 lb. annual growth allowance +1 lb each for the maximum (2 lbs.) of consecutive days of competition prior to an event.
Just some thoughts not trying to defend or offend anyone