If you want to blow your mind go to radio shack and get a 70 dollar scanner and wire it into your boat. You can listen to the shark pilot putting the boat on the fish. He describes what He is seeing. It's go pretty amazing listening to him say stuff like.....You got 7 up ahead of you moving away at 11 o'clock but let's try to get these two at your 9 o'clock coming at you 50 yards out. Then he will say shit like there are 3 right behind these two guys sitting on the surfboards over here. You can listen to him direct the boat right over the fish for a harpoon shot.