I made it to the lake to try Ferman's 21P High Five prop. It is on plane in an instant and will stay on plane down to 11 MPH with two people on board so it wins in that department. It isn't as efficient as the 21P Thunderbolt 3 blade but it is real close. Top end was 44 and MPG of 7.1 at 3500 RPM running 26 MPH. The biggest difference is noticed in the mid-range punch. It was very smooth. I never ran the jack plate up, it was just an easy cruise for the most part.
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1996 -19' NV Flats 115 Mercury 4-stroke
1983 -20' Wellcraft Center Console 250 XS
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