Just to be clear the Ben Robertson video shows either Speedmaster number 6 or M8 drives, not surface drives. The camera is mounted in the notch of the transom. At high speeds the goal is to obtain 40% propeller engagement in the water and 60% out of the water surfacing, essentially the lower section of the propshaft bullet should be on the surface of the water. This video shows perfect X-dimension drive height in my opinion, for a high speed application.

What are you Arneson guys seeing for slip and what was the worst slip % you've seen??

I am not running arneson but instead kaama's. I am averaging about 16-17% with my 3 blade props. The worst slip I saw was about 50% when I was still learning to drive with the kaama's and that's because I had them pulled 3/4 of the way out of the water! :( live and learn!

One of the best!

when a stern drive is that high and spinning the same prop is there really much difference?

Double post