I was using the in house plastic balls. My motion is bastically a pendulum motion, however, as I come up to release the ball, my elbow is slightly bent and I muscle it off. I don't use a glove, or anthing else. I don't know the properties of the inhouse balls either. I'm just assuming, anyone that bowls with the free arm swing (lets say someone here on the boards) most likely has a custom ball drilled for their size, but I'm willing to bet, if they went and used an inhouse ball, they'd still be able to use the free arm swing, but of coures it would be less effective because of the ball.
I just want to be able to bowl using this motion. I know getting a ball custome fitted to my fingers may help, but if I can't do it at all with an inhouse ball, my guess is, I won't be able to do it with any ball made for my fingers. There has to be something I'm doing wrong. I just don't understand. I will try to video tape my next bowling session, and show you all how I bowl.