Bob Austin does one hell of a job on props.
There really sharp and thin.
He does different mods to them for different boats.
If it dont work, send back and he will tweek or send another one.
Just tell him HULL and MOTOR combo. and he will get you in the right direction.
The others, I have heard good about Mark, His props look good, and perform good.
Chuck, Seen some of his on boats seemed to work ok, Cant comment on HOW THEY RUN ON BOATS as I have never bought a prop from Mark or Chuck.
I have only bought good props from Bob A.
Cant comment on others, but i have had good luck with Bobs, so why change.
Its about 2 weeks turn around, send money he does the prop and ships to you.