One afternoon after many games my son's thumb was getting tore up so I said try two handed. He said how? I said just like this. Never tried it before but I did it, not a strike but I hit my lay down point, break point, and the head pin at least. The hardest part is getting down with a lot of spine tilt so you can project the ball straight out instead of lofting it down the lane.
Do I want to try two handed some more and see what I can do with it, absolutely not!!!
Also I have to mention it is amazingly easy to throw a flat shot straight across the lane at the ten pin. Your thumb ain't in the ball, duh. I don't know why I see so many two handers missing 10 pins still trying to rev the ball.