Hi there, sorry you've had no replies yet.
Are you hoping for your two LOs to be down for a nap at the same time in the afternoon? What commitments do you have to be out of the house in the mornings? Just helps when thinking about the routine
It's fine not to do a dreamfeed - we never did. But if you did want to do one there's no need to pump or use a bottle - you can just feed straight from the breast if LO will latch on.
A 3/3.5/4h EASY is really determined by how much A time your LO can handle followed by how long they nap. It doesn't have to be quite as rigid as the name suggests - so it could be 3h in the morning and 3.5h later on, or any other combination. Typical A time at four months is 1h45-2h (that's eyes open to eyes closed) so rather than thinking about exact times between feeds, I would instead concentrate on feeding when he wakes for the day, having some A time, winding down when he shows tired signs (one eye on the clock just to check you're in the right kind of ballpark) and then aiming for a good 1.5h or more nap. Then starting again with a new EAS cycle when he wakes. However you may need to adjust the routine a little if you are hoping for a long lunchtime nap overlapping with DS1 which is where knowing your plans will help.
A couple of things I do notice from what you posted though - some of the gaps between his feeds are really quite short. Does he feed well each time? I'm just wondering if in fact the cues you're seeing are tired cues and he's using the feed to soothe rather than because he's really hungry? His bedtime is also pretty late, normally we'd aim for around a 12h day at this age. So if WU is 6-7.30 then BT probably needs to be closer to 7pm to prevent too much OT.
What do you think?