Wow, way to go! Perhaps after a couple more days of you helping him to resettle, he'll sleep longer on his own. Assuming, of course, that he'll still want the shorter A time then. Ahhh, I knocked on some wood there.
Fwiw, my sil has a son who's a month older than Aaron. He wakes up around 7, takes his nap from 10-11, and then is up until bedtime. She follows BW, too...so, just goes to show that LOs are not created equal.
I'm glad you're getting some down time, hon