Cyndie - forgive me if I have already asked you this, but have you ever tried W2S

He wakes at pretty much the same time every day right? So may be habitual waking rather than routine related? Just wondered if this might help you extend your nights a bit. I never tried it for our EW b/c DS always woke at differing times so I'd never know when to go in to him.
Sabs - if you do a slightly shorter AM A time will she still take a decent nap? I'm just wondering if she could be a tad OT & this is why she is waking between sleep cycles & you are having to AP her back to sleep

Only saying this b/c O hasn't hardly shown any tired signs the last few days & he's been doing 5hr A times & then today he has utterly crashed out. So I know it was way too much for him. In fact I think his tired signs are changing now he is becoming a toddler & instead of the fussing & crying/screaming we got when he was younger, he seems to be going all hyper & super excitable & loses coordination.
Ladies - Our day has been a catch up day. Oliver is VERY VERY tired. I guess this proves we are not ready for 1 nap days yet.
Wake: 6am
Nap: 9.35 - 11.40 A = 3h 35 S = 2h 05 (he still had HUGE bags & looked tired even after a 2hr nap!)
CN: 3.35 - 4.20 A = 3h 55 S = 45min (I woke him or who knows how long he'd have slept?!)
BT: 7.15 A = 2h 55 (teensy bit worried this was too short - what do you think

)
I'm hoping & praying that the extra day sleep will have helped him catch up, but won't take from his night sleep tonight. He could really do with a decent long sleep (PLEASE!!!)