I use my tach like NASCAR
My Speedometer is OME and has a plastic pitot and doesn't even start to register until 20 MPH. So to avoid any late night encounters with the MP. I brought my portable car GPS aboard and found out where my tach was at 25 MPH. It interestingly enough was around 2600 RPM with SS prop and a half a tank of gas. Of course to plane the trim tabs are all the way down and I am throwing a great wake boarder wave.
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