It only took 2 hours in my Dutch ovens (DOs act almost like a pressure cooker with their heavy lids). I made two roasts so two DOs. I shredded both then fried up just enough in the skillet for supper.
I vac-sealed the rest in dinner-sized portions and popped them in the freezer. There's enough for 4 more meals for Herself and myself. All I have to do is defrost in the mw and stir fry it in the skillet. Four almost instant meals for 2 hours cooking time. Nice part is I can take those vac-sealed portions with us in the mh and be able to have carnitas on the road. Oorah!