Thanks to all -- who helped with my initial question.

(Current: 22' cuddy -- HEAVY boat, 5.7 alpha1 3 blade SS, 19pitch, 4100 rpm
(should be around 4500)

After poking around mercury's website, and talking to a prop shop; I've narrowed
down my choices to these:

Revolution4, 4 blade 17 pitch
Vensura, 4 blade 17 pitch
Enertia, 3 blade 17 pitch

I'm leaning towards the revolution4 -- but it is pricey; so I want to get a bit
of real-world, non-salesman based opinions on it.

Thanks
-josh