Haven't been back except to Put-in for many years. It is growing, too. I guess we never went up against each other, but it is interesting that we have somewhat common background on the lake. I used to do the Sandusky Cedar Point sail and park weekend every year. Those were some good, good times.
The reason to put in a Yanmar was for one, an incident at Cedar Point marina. Leaving, the wind was blowing right towards the rip rap as you turned to enter the bay. As soon as I turned, the damn outboard died. Knowing how this often happened, and at the worst times, I also knew there was not time to get a restart. I had a bunch of rookies onboard, except my girlfriend who was a still learning, but somewhat competent sailor. I ordered the main sail up, and they managed to get it shook out and raised, just in time (20 feet) from hitting the rocks. Next year, dad toured the ODay plant and talked with them on how to best retrofit the Yanmar, and bought a few of the parts. It was a pretty good jig and engineering problem, drilling an approximate 1 1/4" hole at about a 15 degree angle through more than 2 feet of hull. It involved a big plywood jig to hold a hole saw pilot bit that had been extended to be about 3 feet long.
I think the one lung Yanmar we got was a 7HP. It was big enough to drive the boat to hull speed. I did like the increased reliability. :-)