Personally, I always go with my dd cues! I look at EASY as a routine that changes everyday. Try not to look at the clock (especially at this age) and just go with the flow. Your dd will let you know what she needs.
As far as the carseat goes, my dd will not sleep in her's....never has
. My thought is that occasionally it is a good idea so that you lo will be able to adapt but if you are home or close to home at nap time, try to put her in her crib. This will establish good sleep habits early and let her associate her crib with sleep.
HTH.