I've put quite a few hours on one in a SportCub; in fact, I had a bolt fail on the way to Oshkosh this year. It's a nice prop, very light, and relatively smooth like a woody. The convenience of changing pitch is nice, but I'm not sure it's on par with a McCauley of the same pitch. Even with a climb cartridge, it doesn't appear to pull as hard; the difference is very small, but noticeable I think. That said, it was able to pull the airplane into the air prematurely and get out of tight spot; literally hanging on the prop.
Originally the prop was designed for the lighter, smoother running Rotax and Jabaroo engines. Subsequently, the design may be a little under built for the enthusiastic little O-200, as seen with the bolt failures. Plus, I question if the blade design is optimum for a slow turning engine that has decent torque like the O-200 (when compared to a Rotax, Jabaroo, etc...)
You can't beat the price for what you get though.
nkh
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