Thanks for the verification. The differences between tables really threw me for a loop.

There IS an interesting phenomenon for these pitch angles: the angle 32.48 degrees occurs at the same relative radius on every pitch. This angle occurs where the blade pitch is equal to the number of 1/4" radius points. 32.48 on a 5 Pitch occurs at 5/4" (1.25"), on a 6 Pitch at 6/4" (1.5"), 7 Pitch at 7/4" (1.75"), and so on.

That's an interesting method of determining pitch! I was making props with the laminated fan method for a while, and used the formula that the pitch divided by two pi was the distance from the hub of a 45˚ angle. I wonder what the math is behind the 32.48˚, but my Trig is failing me.