I didn’t find that having my fixed three-blade in neutral helped. It was just a drag - in all senses. I do not find any problem in reverse but I do not believe although I am not sure that the V transmission with my Yanmar engine has different pitches. The Kiwi has so improved my sailing that I will fight for it in a sailors’ bar. You do have to remember to clear the weeds, though.
Best,
NIck
Nicholas Hirst
nicholashirst@me.com
Mirthin N30U #513
RCYC, Toronto