I have always had 4 blades on my Centurions and once tried a 3 blade but could not get it to run as smooth as the 4. Thanks to
www.propellersonline.com they swapped my spare 3 for a 4 blade. Actually, I was thinking the 3 blade prop may help the wake stay clean. If I remember correctly when I tried the 3 blade my wake did look a little cleaner but not really nothing to brag about. Unless your are adding a ton of weight and need a better hole shot and your boat is running smooth I would stick with the 3 blade.