I take a collection of props I have collected over the years out with me whenever it comes time to fly a new plane. I fly a couple of flights and then change the prop. I do that until I find the best prop. It is a lot of work and a couple of trips to the field, but pays off.

I have found that in some cases the MA will perform better than the APC. The best prop will differ from person to person depending on the way people want their planes to perform.

I'm a speed freak and love unlimited vertical. Most of my planes have APC's. For me, my fast planes all have APC's and the slow ones MA's.

I can't say one is better than the other. Props for the smaller engines are around $2 so experimentation is cheap. I guess if you read between the lines, I have found APC's perform better on faster planes and MA's on slower planes. I'm sure someone else would come up with a different conclusion.