Ok, some update from us.
Generally things are really nice here, I will not complain. Consistently on 2 naps for last 2-3weeks. Even if one was 30min and second one 45, he managed the day (happened once when we where traveling - nap in plain was 30min:/ and two days ago in nursery).
His schedule looks mostly as such:
7am WU (he wakes slightly before but I don't know when as quirky lying in his crib)
10am nap (doing 1,5h here on most days which is working fine, on holidays he did almost every day if this nap wasn't in the buggy)
Around 2 or 3pm another nap and here is my question... If he did a short one in the morning he will do a nice 1,5h here but if he did a long one I cannot figure out his needs. I put him down at holidays after 3-3,5h and he is doing anything from 30min to a 1h when I wake him. It would be ok but 30min seems to me for sure OT nap (couple of times happened after 3,5h A even if the morning nap was long), 1h seems to be fine but I got twice or so 45min nap when he wakes cranky! And is cranky for next 1h or so... Still not after every nap of 45min he is cranky... Sometimes he wakes up happy and eager to play. Cannot figure out if he is UT or OT those days. Are kiddos waking from UT happy or also cranky? After OT nap F was usually fine just needed a shorter A so this cranky mood after a nap is a novelty for me.
Forgot to say, BT at 7pm, settles very nicely and STTN.