Regarding pre and post-feed weighing and Nancy's thoughts on whether women can yield high fat letdowns under the stress of knowing their output is going to be measured...Its sort of like suggesting a study where the amount of ejaculate would be measured after sex; one wonders if the average male wouldn't have some performance anxiety that would interfere with the quality of the experience. Oh, my, am I getting too weird, folks? I think Nancy's point may be well taken. I recall touring a Vermont dairy farm a few years ago. The farmer stressed repeatedly that "nervous high-strung cows" give more milk...He didn't discuss the fat content of their milk though and I didn't ask that, or what criteria he used to evaluate their personality traits. I returned from that trip with a T shirt reading "10,000 cows can't be wrong". It referred to living in Vermont, of course, but I chose to believe it meant that cows breastfeed their young, and obviously know that's best...reading some recent posts on cow calfs and bottles, I guess the cows may know what's best for their babies, but apparently the farmers disagree. Joyce Blangiardo RN, FACCE, IBCLC, in sunny NY where the crocus are coming up!