I think it bears saying again that there are 3-bladed props and then there is the specific prop that comes with the Evo trainer power system.

You can get APC or MAS or other brand 3 blade props, and they perform much like their two-blade counterparts, though they aren't quite as efficient. But the difference is small. The 3 bladed props you see on IMAC planes, for instance, are designed with the same goals in mind as a 2 blade prop, that is, to acheive the best possible performace. So guys use 3 bladed props to reduce noise and improve ground clearance and such, and get performace that is very close to a 2 bladed prop.

However, the Evo TPS 3-bladed prop was designed totally differently. It is NOT designed to be a direct replacement for a two bladed prop. It's not desined to maximize performace. It's designed to keep the top speed of the plane down and make the plane "beginner friendly". As far as I know, there are no 2 bladed props that are designed the way the Evo prop is designed, so there are NO props out there that would be a direct comparison to the Evo prop.

In other words, the Evo prop is different. It's not just the blade count, it's the whole prop design.

So, when talking about an Evo engine and "2 vs 3" blade props, it's important to make clear if we are talking about 3 bladers in general, or that one propeller design specifically.