A couple of things would concern me using a pontoon boat. I fish from a kayak myself and occassionally the wind blows over 20 knots which makes paddling difficult. I can't imagine the difficulties you would have with a higher profile boat like a pontoon boat. Second, the water is shallow in places and you may run over oyster shell and that usually leaves deep gouges in my plastic kayak. I would think running into that in an inflatable would puncture it in a heartbeat. These are just my thoughts.