Does anyone have any pictures of their zippkits stinger set up, or a description of how it is done. My question is referring to the flex shaft to ferrule to straight shaft fit. Where does the thrust washer go in the grand scheme of things. With the thrust washer what kind of gap should I leave for the square drive flex shaft to wind up? My understanding of the setup is that tapered side of the ferrule gets soldered onto flex cable, the set screw side goes into the 1/4 shaft/file the shaft so the set screws recess in their holes. Shaft goes through the stinger then washer-bearing-washer-dog-prop-nut. A picture is worth a thousand words. I ran into a snag when I called zippkits for prop recommendation. The prop he suggested was for a 454 sport for 3/16 shaft. He further explained and it made sense that boat props are not like airplane props, they need rpm's and if too big a prop is used the motor will heat up. So i am now going to need to machine down the 1/4" shaft to accept the 3/16 prop bore/drive dog. Assembly will in essence still be the same though.