Can a "hesitation" Be Legal?

[Spence]

Got into a discussion about pickoff plays when a runner is on second base.

If a pitcher is in the set position and raises his leg and slightly hesitates before either throwing to 2B or going home is that a balk?

The "without alteration or interruption" portion of 8.01b was cited.

[mbyron]

If everything stops, it's a balk. If anything is moving (usually hands) it's legal.

[bob jenkins]

Originally Posted by mbyron

If everything stops, it's a balk. If anything is moving (usually hands) it's legal.

Agreed. Chances of a "full stop" once players begin to shave approach zero.