Although I have the ability to mark fish on my GPS, I thought marker bouy's may give me a little better idea of boat positioning when trying to catch those fish.<br /><br />I've seen these in the tackle shops (usually sold in a set of three different colors) and now believe I have a practical use for them.<br /><br />Just curious if and how other folks use these and what benefit they recognize from them.<br /><br />Helpful advice appreciated.<br /><br />Kevin