Hi. Just a question out of curiosity. I know from this great site how the interrupt switch works to allow shifting on my Mercruiser Alpha 1, but after going out on my neighbors Crestliner with an outboard ( Mercury 115 ), I got to wondering how shifting is accomplished on an outboard. Same principal? I posted this question on the outboard forum but no replies. Not really important but like I said, just curious. Anyone know? Thanks, Gary