On a side note, the bottom end weight classes in the established divisions are recommended by the executive board and approved by our state body...they are what they are and all sanctioned tournaments have to follow the guidelines. The division of weight classes is debatable and there are some recommended changes proposed by the executive board that will be considered at this years State Body Meeting in Salina. These proposed changes are tied to historical analysis.
The weight classes are just as you stated "guidelines" but the only time a sanctioned tournament would "have to" follow those guidelines is for qualfying tournaments. For a sanctioned invitational the host could feel free to create entirely new weight groups or combine weight classes as is commonly done.
