Sharon, I did not mean to insult your professionalism or your intentions or your training or your experience, and I certainly did not say, or think, you don't have a clue what you are taking about.
We're all learning, all the time, aren't we? I don't claim to be right all the time, either, but on this particular issue, I am surprised you feel so certain I have it so wrong. I explained why I think it's unhelpful to assess BF by the clock in my posts of 9.16 and 9.33.
What bits of these posts do you think I have wrong?
Why are you so very sure that feeds of 40 mins plus ( in the absence of anything else untoward, and where mother and baby are happy ) are something a baby should not be doing? By the way, I think it would be unusual for every feeding session to be more than 40 mins long, but some mothers and babies do experience them, either occasionally or as 'cluster feeds' or for a period when the baby just seems to need them, for some reason. I think it would be unhelpful for an HV or anyone else to tell her that her baby should not be doing this, and it's a sign of something wrong. You disagree, quite strongly, too.
I've explained my reasoning. What's yours?