[Loren]

The swing center for that stroke is between the shoulders, so that's where low-point is. Frozen arms and wrists make it a virtual vertical hinge action, straightaway flight. Identify low-point and place the ball just after it, or close to it. Directly under the left eye is conventional wisdom, head centered.
The shoulders must move on plane. Pulls are shoulder out. Pushes are right arm straightening.