Steve's right-on ... two would be far better than one. I sure wouldn't want to play golf carrying either a single 3-iron or a single 9-iron. However, put the two together and you might break 100. I would go for a 4-weight and a 6-weight. I would add a fighting butt to the 6 and use it in the salt as well as for Mr. Largemouth. Assuming you select a fast action, the 6 offers the extra lifting power and wind fighting ability I think you will need.