PG, Texan, and Gshew,
Thanks. I have chatted with my son about his 'cutter'. He said he hold the ball like a 2-seam fast ball, then rotate his right hand together with the ball (no relative movement between ball and fingers) so that his thumb is on the left and his index and middle fingers on the right side of the ball. He claims that he throw it like a fastball but make sure to point his thumb at the catcher to finish his throw.(I guess in doing so the two fingers would spin the ball so that the leading point of the ball would move left and down from pitcher'sview)
From the catcher's view, the red dot starts on the left side and progressive moves to the font and top of the ball as the ball breaks down and away to the right. In a game, even the catcher knew it was coming, he would miss the ball for a called strike or swing strike.
The reason I am so concerned is that I think it is more of a slider than a cutter and I do not want him to throw such a 'cutter'.
Again your evaluation of his 'cutter' is truly appreciated.
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