Got what I was looking for off of my umpires board for LL.
Paragraph 8.01(g) states:
"A backward step may be taken before or simultaneous with the hands being brought together. The pivot foot must remain in contact with the pitching plate at all times prior to the forward step."
"The Right Call" Casebook -- Comment: (1) Prior to bringing the hands together, or simultaneous with bringing the hands together, a pitcher may take one step back with the non-pivot foot before delivering the pitch to the batter. However, if the pitcher starts his/her delivery with only one hand on the ball, he/she may also take a step back with the non-pivot foot. (2) There are two (2) approved deliveries (a) windmill - the "windmill" pitch occurs when the pitcher makes a full and complete revolution with the pitching arm. (b) slingshot - the "slingshot" pitch occurs when the pitcher turns her body toward first or third base and bends her elbow during the back swing, then whips (slingshots around to the plate).
Instructor comments: The Note above allows the pitcher to take a step backwards, but only if the hands were apart before the step. If the hands are together while in the pitching position, the pitcher may not step back.
The hands must be brought together before, during or after the backward step.
