These conflicting reports are not necessarily really conflicting, either.
For example, it could be that for babies where all is well the shape might be
best, but that for others -- with dicier oral anatomy, or some oral aversive
issues that affect tongue positioning, or heaven knows what -- it could
prompt or aggravate other problems.

Not to mention that Nuk makes several different nipples, with different
sizes, shanks, flow rates, etc.   (For example when my own kids got bottles
of my milk they used a Nuk newborn-size nipple, even though there were not
newborns by that time, because it was set up for slower flow than their "size
two" -- by the time they were old enough to find that frustrating or annoying
their work-time bottles of milk had become work-time cups of milk, anyway...)

So this seems to be back to Barbara W-C's reminder of how little we know, and
how much it helps for folks to write up cases and analyze data when we have
it.

Elisheva

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