The block concept would take a lot of manpower and would be tough for most tournaments to pull off due to the mass confusion. It could work if you do satelite weigh ins the night before so the brackets could be made in advance I guess.
I would like to see where everything is done on a program that tracks the records of each kid so parents stop rating their kid as beginner/novice just so they could win it. Take the power out of the parents who always lie about the ratings. The computer could bracket them evenly with a fair criteria and have equally amount of kids in each bracket for the weight. The sport would also be more fun because all the tournaments would be tracked and results posted for all to see. Would make wrestling more fun and fair for everyone.
Tired of seeing a kid win a C bracket all year long while an honest parent who ranks their kid as average gets thrown in the A bracket with super tough competition and has a hard time placing. Ten kids in a weight should have two 5 man round robins, not seven kids in one bracket and three kids in another bracket.