The reasoning being the Kid's board voted to accept the High School weight classes. They did not vote to accept them and the 2lbs growth allowance that is allowed following their certification at a specific weight.

The boys as you say were never allowed a 3lbs growth allowance during the season, they were allowed a 2lbs growth allowance and probably an additional pound due to a competition the day preceding said weigh in, thus 2+1.

On the surface this seems cut and dry, however as USAWKS has adopted the NFHS rulebook for Kids, the weight classes should also include the 2lbs growth allowance provided they certified there in high school, but getting the KSHSAA member high schools to release that information to the Kid's clubs would be a complete waste of time and energy I'm afraid.

Perhaps the board just needs to take a look at adding a modification to have the high school weight classes to include a 2lbs weight allowance while weighing in.