Any turn of the shoulders, while in contact with the rubber, would be a "highly technical balk" in FED. I have never called a slight turn, and have never seen a slight turn called. Anything resembling a feint is always called. The Varsity pitchers know the rule and will have very little shoulder movement when looking at runners. I have never seen a right handed pitcher turn his shoulder to the right to look at a runner, but if I did I would not balk him if it was a slight turn, especially if he was looking at 1B (post did not say which base). I can't see a pitcher picking a runner on 1B by turning in direction of right shoulder.
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