Both arms dangling

[Porch Dog]

What prompted my question was experiences I had as a third base coach. Most pitchers who started with both hands down at their side would just swing their arms up as a start to the pitch as they stepped back with their non-pivot foot or shortly before their step back. Most would continue the motion up while getting their grip and deliver the ball. My question was if they paused to get their grip, thus stopping their motion, is this a balk? If you have your players getting a secondary lead or perhaps a suicide squeeze it could create a problem if you had them do these on first motion. Thanks! Porch Dog