BTW, props are made in a number of pitches. The pitches we have available to us are perfectly adequate. And the pitch range is usually perfect. And the differences between pitches is fine enough but not too fine nor too coarse. Change the pitch one inch and the difference is noticable but not too great.

On the other hand, change to a different diameter prop and you got a major change. The one inch diameter difference isn't fine enough. But it's all we got.

So figure that you can play with a lot of different pitches, but you'll probably only have a couple of diameters you can try.