[Little Jimmy]

I'm looking for a recent thread. The discussion was about a pitcher who flipped the ball from glove to hand while on the pitching plate. I had a pitcher yesterday who would stand on the rubber with the ball in the glove. Then she would bring the glove close to the hand and let the ball roll into her hand. After that she would wait a second or so, bring the hands together, then pitch. Can anyone point out the thread or comment on the legality?