The High 5.... It is of course a 5 blade. The Blades certainly are Smaller as there are more of them, and the Diameter of the Prop is smaller than 3 and 4 blade Props. The Blades do have some Rake, and a Progressive Pitch. Being a smaller Diameter, also means the Engine, can be mounted Higher on the Transom before the Prop will suffer Ventilation, but it isn't a Racing Prop. It was developed for Water Sports, and does a Decent Job in that Application. They do provide very smooth operation, when new, but after any Repair, that might change based on how well the Repair was done
Would I run One? No, I stick with Moderately High Performance type Props, like the OMC/BRP RAKER, and the Mercury Enertia, both are good Props with plenty of Progressive Pitch, Rake, and Cup which gives both of them a tenacious Grip on the Water. Both are also of good at holding the entire Hull out of the Water, not just the Bow(My Avatar Pic, shows the boat running the Enertia on a VP SX Drive. The Propshaft is almost perfectly Horizontal, not making any Rooster Tail)
If I could find the proper 4 Blade Prop, I would be cutting 2 Blades off and rebalancing it, and using it, as there would an increase of several Mph, with a slight tendency for slippage upon Acceleration
Here is the boat 22 yrs ago with the RAKER, the Enertia has better Holeshot and Top End than the RAKER