Yes we did a nap 1.30/2-3 for a while (as in put down at around 1.30, would often sleep at around 2/2.15 and we'd wake by 3) with a 6.30/7 WU and 7pm BT, though sometimes it would take a while for DD to fall asleep. She was also a little younger when that worked well. Have you thought about shortening his nap though? It's been suggested to you a few times and I notice you are still giving an hour's nap. It may be too much.....