There is quite a bit of backstory to it, but about 6 years ago, I realized I wasn't likely to ever hit the ball any farther, which meant that I wasn't likely to ever hit the badell closer, which meant that I'd better find a way to putt as well as possible.
So I started putting side saddle, and it's maybe the best golf decision I ever made. It's just a better way to roll a golf ball, period. Very natural, binocular vision, one hand performing the motion, done the way you roll a ball, or shoot a free throw, or toss a wad of paper, or throw a dart, or bowl, or bunt; most anything in any sport that is a precision movement.
One of the issues with side saddle is that you can't walk into Golf Galaxy and mess around the the side saddle putters, so some experimentation is involved. Bobby Grace has been making beautiful putters for many years, and for the last few years, he's been turning out some wonderful side saddle putters; I currently use one of his called the F22.
I really cringe now when I see somebody still using a broomstick. They're already using one hand, which is better, but they're swinging their arm across their body, which isn't better, and dealing with the visual distortion of standing parallel to the line, which is even worse. But I digress...