Considering either the Bogen 3001pro or the 3021pro. Without the center column extended there seems to be a 6-7" height difference, 46" to 53". Everyone says not to fully extend the center column for reasons of stability. Thats only 4 foot tall! Am I missing something with this? I shoot mainly landscape/nature and macro. I'm 5'10" tall if that means anything in my final decision. Probably go with the 3047 3-way pan-head. Sound good?