DD is 5 1/2 months and has always been fed to sleep. Interestingly, in the past 2 weeks she's had several evenings when she clearly doesn't want to feed anymore but is still awake! Although this alarmed me the first few times, amazingly she actually more or less has taken herself off to sleep when I've put her down awake. When she's done this she's also then gone on to have a much more settled early part of the night, so I'm thinking she might be ready for stopping feeding to sleep. But if you have to stop feeding before they fall asleep, how do you know when to stop iyswim? So this evening, I hoped to put her down still awake, but she stayed latched on and feeding and drifted off (cue an unsettled evening - coincidence or not?!) - its not going to be helpful to stop her before she's had her fill, but it's how to make sure she's had enough and is still awake.
Would be interested to know what others do.