Well, he's continuing to do a 45 min nap in the morning, usually because we are out at that time and he is in his carseat. Then awake for 2 hours and a 2 hour nap, which he resettles himself after about 45 mins in! Then 2 nights ago we did pu/pd again, and only did it 2 times and he slept until 7.40, and last night he didn't need pu/pd! He resettled himself each time and slept until 5.45, I fed him, then back to sleep until 7.45. We are ecstatic!! Hopefully we can carry on with this and extend his morning nap and then hopefully he will wake a little later in the morning.
We are trying to maintain the 4 hour routine
Thank you soooo much for all of your advice, just having another pair (or two) of eyes on this has really helped. He wasn't colicky when younger so I'm thinking he was just so fussy recently because we had messed up his schedule so much. The last couple of days he has really started drooling, so I'm guessing more teeth are on there way, I hope it doesn't change anything now that we are finally seeing some progress!