I'll contribute to this argument. As a teacher I do not believe in switting. The player will have a dominate tendancy through impact. They will either feel more push or pull. If they feel more push they are hitting. I also agree with Jeff Hull the alignment of the machine is what's important. No matter if the player is hitting or swinging they must have their flying wedges in tact tracing a straight plane line with a hinge action that produces the desired shot.

What BTS describes is hitting.

Sorting Throught the Golf Nut's Catalog.

B-Ray