The 2 blade is limited to high end performance.When adding weight or skiing
the 3 blade has better all around performance. 4 blade low to mid range will generally do better than the 3.
I have the merc with the 2 blade, just grab the two blade right off the iboats website. I looked into a three blade too, BUT, two blades came with this engine from the factory. I figured they were engineered that way, so I decided to leave it that way.
