Allows more air around the prop, makes it easier to spin, gets your rpms up and your power for holeshot faster.Drill the holes wrong tho and all you do is make your prop into a throwing star.C.O.D. Jr. III
Jim EbarbMany, LA (Toledo Bend Lake)2004 Cougar/ 225 OptimaxHumminbird Helix 12 Chirp SI on BalzOut Mount at bowLowrance HDS 7 at bowHumminbird Helix 12 Mega SI on Ram Mount at ConsoleLowrance HDS 8 in dash at console