I wonder if making him slightly constipated so it takes a little effort would stop it? Less fruit more bananas, bread etc? Maybe after doing it for a few days or so and going back to normal might change the poo routine?
Well, we had two poos in the day and he still woke at 4.30am again today. All I can think to do is crack on with potty training at the weekend and see if that switches the times around a bit. Not sure what else to do!