So I've started recording feeds and 7 week old DS feeds for around 20mins a time although sometimes longer in the night. He prefers to feed to sleep although during the day i try to bounce him etc instead. Is this long enough to get the hind milk? He comes off by his own accord and then if awake doesnt make further feeding cues. I swap breasts each time but they dont really feel drained as such. Ds tends to cluster a bit before bed - again do i swap each time?