BW is all about listening to your baby so if you think the A time push was too much, then just scale back. It is all trial and error so we never know what will happen until we try. I tried a 2.25 A time the other day and ended up with OT naps, so I knew we'd gone too far. The other thing to remember is that the odd bad day isn't necessarily a good representation of what your LO can handle, they have off days just like we do
Short update! We're back on track.
A times are now increasing (2-2,5 hrs), naps are improving (1,5+1,5+0,5 hrs), the NW:s are decreasing (2) and WU is later (6.30 or 7 am, thanks to a bit of AP, but still..). Hopefully the crying before naps was just a phase - we now have our happy LO back!