Did you let it go uncovered in the pans until finished? I like the idea of capturing the juices after 4 hours. Do you season or add anything once pulled?
Once I flip them into the pans, I let them rock with no foil until they get a nice bark, then @ 180 or so, these got foiled... it was getting late and had to rush things along a bit. Most times, I don't foil. When I pull, I add the de-fatted juice in, and some Tiger Sauce. I always pull by hand and pluck out the fatty globules.