Any input either way would be great. Anyone converted to the 3-blade
prop in the Pathfinder/Dakota/Cherokee Six line? Anything good or bad
to say would be helpful.

How much weight (useful load) and efficiency are you willing to donate
to the prop?

Compare two-blades to three-blades.

http://www.hartzellprop.com/index2.htm

http://www.mccauley.textron.com/home.html