If you think about it, what Mississippi does with the turkey regs is a real boon to juvenile hunters, as only they can shoot jakes.
Juveniles have the benefit of both more longbeards (since adults not shooting jakes allows for more older birds) and the option of taking the jakes the adults cannot.
Not to mention, with more older Toms in the population, better breeding/nesting success is facilitated, resulting in more turkeys period.
I certainly have no criticism for how they're managing their turkey regs in Mississippi. The kids love it.