[Nerissa]

I can tell when DD is frustraited with a slower let down especially by Friday when she has had a bottles all week at daycare.

I would pump or hand express (I never have luck with that but some do) just a bit to get the milk flowing and see if that helps.

What bottles are you using? Do you have the slow flow nipple?

Does he have any kind of predictable feeding times that you could offer when he is not super hungy yet and the slower let down may not bother him as much.