No joke, a friend’s advice for getting good at pool/billiards was to start playing with my off-hand dominant. And he was right! It didn’t take long to get back up to speed with my other hand and my game is way better because I have a better intuitive feel now, and I’m not caught by unfavorable shots since i can freely use either hand forward to play.

I do this with any physical activity I’m trying to improve at now. It trains the brain to focus on the mechanics of the task, not just autopilot through it. And being a little more ambidextrous is just real nice!