I have never been able to "bowl legitimately." I've had holes drilled into multiple balls which were supposed to allow me to bowl comfortably with thumb insert

I have never been able to "bowl legitimately." I've had holes drilled into multiple balls which were supposed to allow me to bowl comfortably with thumb inserted. I always ended up taking my thumb out of the ball and palm it instead, with my hand positioned in the opposite direction from normal. My latest ball is a bit lighter than the average one... 13 pounds... and there are only two holes which are drilled slightly deeper than normal. I don't know how many RPMs I'm putting on it, but it's definitely spinning faster than most people I've bowled with. After having watched a video, this guy looks to be doing much the same thing except he's stabilizing the ball with his other hand. I learned to bowl this way from a friend of mine over 25 years ago and it's been a favorite ever since. My mom was a member of a bowling league at one point and I absolutely wore out her 11 pound ball when she stopped playing competitively.