While Howard's answer is interesting
I wonder if the data presented
has been thoroughly tested?
Some basic tests could be done with one of John's planes that uses APC props, to see what happens. Use hot water to sweep the blades aft about 10 degrees. Pay close attention to tracking, and pitch, of course.
From what I know about boat props (bass boats, in the 60-75 mph range), I think it would definitely do something, and my guess it would be
BAD! Maybe even
VERY BAD! Report on your tests, John...
Steve