I downloaded your chart. Had to do a bit of cleanup work, as tabbed text doesn't always come out as clear as you'd like!

The information presented there does seem to be pretty accurate - my .46VFs turn 10X7 props @ 15,000 plus & 9X9 props @ 15,300 plus. According to your numbers, the 9x9 props actually present a lighter load, hence the extra RPM.

Anyway, I'd like to know what formula was used to generate these numbers. I'd like to add some of the fractional-sized props to the data! (like the APC 12.25x3.75)