I say you have one sight with one bracket for each weight. Take the 16- 123a, 16- 4a, 16- 5a, and 16- 6a guys from each weight and wrestle one 64 man bracket except have each classification have their own seperate awards. Then after the awards for each quarter of the 64 man bracket are awarded finish wrestling out the tournament in the 64 man style. This would allow for each classification to have one state champ and for there to also be a grand state champion. You can also keep team points for each classification and for grand state also.
