[Mark]

While not exactly glamorous, don't overlook Tohatsu. They make a 140 that is bulletproof. I rode in a 23' that had twin Tohatsu 140's and the owners couldn't say enough good things about them. They have long supplied the Japanese commercial crowd with very durable engines.

I personally have a small one on an inflatable and while that is not a good judge for what you are doing, it is incredibly dependable.