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I have tried both the 4 blade prop and 3 blade props that came with my boat. The 4 blade prop definitely gives better holeshot and less top speed. It worked great for waterskiing and tubing this summer. The 4-blade prop gets the boat on plane significantly quicker.
With my wife and I in the boat, 330lbs between the two of us, sitting in the front seats, as soon as I trim up even a tiny bit, it starts porpoising. If she sits in the bow, I can trim up enough to find the sweet spot where the rpms go up and the ride is nice and smooth. Yesterday was cool, she sat in the cockpit with me and we bounced down the river.
Even with someone in the bow, I can only trim it a very small amount before porposing starts again. I'm talking 2 quick hits of the switch and that's it.
As far as I can tell, this thing is trimming down as far as it can go. Running with it down I get the telltale v-spray pattern. I can't confirm on my driveway because the skeg will hit the ground before it's all the way down.
The other problem with the outdrive tilt is that the top of the drive will hit the swim platform on my boat, and therefore does not tilt up enough to clear the bottom of the boat. This makes beaching and trailering difficult. I've seen a photo of the same boat with what appears to be a Volvo Penta, but the drive is tilted up much higher than mine. The first is of mine tilted up almost all the way. The second shows another Campion like mine with the drive clearly tilted up higher.
