Recently I've noticed the only time i get a decent pull of milk is when i use smaller bottles to pump into, my breasts feel empty and engorgment is prevented for more than 3 hours. The only issue is when I use the smaller 4 oz bottles they seem like they'll overflow before I'm finished pumping.
when I use a 6 oz bottle to pump into my breasts don't empty very well and at best I'll get 2 ozs and in a few hours my breasts feel pretty engorged.
I have a medela PIS and i feel maybe it's lost suction/suction is weak? Idk what the deal is but it sucks...

}
Re: emptying breast and pumping
I have a PIS too. I have used the 5 oz bottles and the 3 oz ones and it doesn't seem to make a difference. The time of day does though. Early morning and late night I get the most milk.