Hi honey, the A times seem quite long for such a young baby. Have you see this thread?
Average A times- BOOKMARK ME! These are just average A times but at this age babies can often only cope with feeding, having a nappy change and then having a little cuddle and a song before sleep (depending on how long the feeding takes of course). If the weather is nice you take a little walk outside for a short A time or just some tummy time or similar, but really you don't need to do much at this point.
It sounds like you're doing all the right things but maybe keep an eye out for tired signs a little earlier. Having said that, of you're getting good naps (1.5hrs) on those A times and only two night feeds then that sounds pretty good.
If your LO is finishing the 4oz bottles each time then you should add another oz or two. Often you will notice that it's time to transition gradually towards a 4hr EASY. BW is not really a schedule, but a flexible routine so now is a really good time to get to know your LOs hunger cues and sleep cues. You will hopefully then get some clues that your DS is looking for a little bit longer between feeds.
There are lots of good FAQs and threads on the EASY board about the transition if you want to have a read around.
I hope this is what you were looking for. X