last night little Audrey had a great stretch of sleep! cluster fed at 7 and 830pm, and she slept from 930pm-145am! woohoo! (unless of course I actually slept through a feeding during that time haha). I think if we have a couple of nights like that, I may consider, as you suggested, dropping the evening cluster feed and introducing the DF since she's either already awake or I'm waking her up for that 830pm-ish feeding.