I have found this time to be the most confusing. Before it weas all about cues and now its more 'set' iykwim. He is truly at an age where he likes to know what comes next. On the days we have EW I just power on through the whinging! I set ourselves a time, saying to myself ''no matter how tempting, DO NOT put him down before say 11am.'' He knows he will get a nap eventually I am sure of it!
Yesterday we had EW and DS went to nursery that morning, he woke at 5am and they gave him 2 naps. One at 9.30 for an hour and one at 2.30 for an hour. Well my god has it screwed things up! He EW this morning but I just ignored the time and stuck to regular nap time ( that was after nearly 6 hours A!) and he was fine. Slept for 2+ hours and we even got a nice 7.15pm bedtime. I know he can do it now. It hard to take the leap but once you do dont go back!!
I think if you have a LO prone to EW, like Brodie then there is an element of just getting on with it despite the EW. Sometimes he just has then for NO reason whatsoever, routine can be rock solid and it just happens!