Lived in Fla all my life.....the "line" if you will and is recognized by NWTF is basically if you draw a straight line from the mouth of the St. Johns River (Jacksonville) to the mouth of the Suwannee River (Suwannee, Gulf coast). Anything north is Eastern and south is Osceola. I'm lucky too I can get half my slam in a couple of days.
Good Luck!!!!!!
20 ft up in a treestand!