Wow those naps have really lengthened havent they! Thats a victory!
Just briefly looking at your easy, I would say he is OT by the time he goes to bed. I think slowly u need to bring that first A time to 3 hours so te day shifts a little too and the awake time from last nap u til BT is not as long.
I hope u are getting some rest during the day or weekends, i know its hard with so many night wakings, we had those at some point or another. In terms of feeding in the night, im no expert at all when it comes to feeding, but Os still gets two feeds at night (9 months tomorrow), i know I have to wean one of them, but our nights only recently started getting better and if I we had a really rough night i would feed him more, just so we all can get sine sleep. Os is a big baby he weighs around 10 kilos. Do u feel he is overeating, does Ralph let u know when he is not hungry? Oskar will let me know when he is done eating whether its breastfeed or solids, he is rather explicit.