To me the difference in Jackson county and most other surrounding counties, comes down to below.

Good genetics
Good feed, agriculture and acorns. Not pines
Good soil along the TN river, could go with above statement
Relatively low human population, with largest city of Scottsboro. Also one of the larger counties in AL.
Excellent terrain features to allow hard hunter access, which allows an older buck class structure
From my experience, *in general*, show a little more trigger restraint. I think that decision is made by the above factors and hope of a big buck.