In my work with moms of critically ill children, it looks like it really does matter. We use every trick in addition to using the machines (we call them boob-gyms) that mothers consistently report an ability to initiate and maintain an appropriate milk supply with. It looks to me like size and speed of motor do matter in this case, in addition to all of the supportive behaviors. It's such a challenge for stressed out mothers that they really do need the proper equipment or it doesn't work out for the long haul. One person's observation.

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