Originally Posted by noreaster
I am on board with learning both hands. As others have said it can come in handy when circumstances call for it. I was actually thinking about this a while back, and made the promise to practice in the spring in the yard. I am sure, with a little practice it can be achieved. I would recommend that you start with your feet and weighting. If your rod is in the left hand put more of your weight on the right leg (70%). This will facilitate the hip and torso turn and give you more control and sensitivity.
I'm thinking about how I shift my weight when I cast with my right hand, but over my left shoulder. It's pretty close to what you just said. That should work.