A few weeks ago, after installing a new jack plate, I did something that should disqualify me from ever using the term boat much less touching or driving one. I Basically backed the boat down the ramp and forgot to lift the outboard up. My helpers never noticed either. No matter now as we punched some nice square holes right through the transom as the motor buckled under for the metal plate smashed right through. One happy moment! After vomiting, and other assorted similar activities, I came up with the following system. It was either this or throw away a very nice classic 1975 Larson 150 All American. Any additional advice, or desrving abuse, is welcomed 
http://transom.homestead.com/index.html
http://transom.homestead.com/index.html