gwcarnes. The routine looks ok, but it may be they not tired if having a 2hr nap. At that age i think i had to increase my ds's morning A time to around 6.5hrs, is that something you could try? So nap at 2 pm & wake by 4? Stick with 8.30pm bedtime & you might find they are a wee bit more tired & go down quicker? The only other thing i can think is to throw in the odd nnd, then even with the nap they'll be more tired for bed.
Kara - i second what sara said. We too find 10.5hrs a good day length & if he's had several nnd's in a row we put him down after 10hrs & he will do 13-14 hrs overnight. & like sara says if she's up early you have more chance of getting a nap.
We had 4 nnd's in a row & he's shattered today & napped 2.5hrs with mil & she had to wake him. I fear a super late bedtime coming on!!