I'm actually the original poster and stumbled over this post on another search. I did move ahead an bought a Kiwi prop, and even if I sold the boat four years ago i did use the boat on an 2 month cruise with it.
Overall i was pleased with the prop. As expected, the sailing performance improved especially in light air. By engine, it lost some bite forward most noticable in heavier seas. Good reverse and the prop walk which was significant on the fix prop dissappeared. I got a line in the prop which pulled the engine out of alignment but with no dammage to the prop.
I would buy it again, price and good enough being the two main reasons.