I've not done it but only because I'm quite sure it will dry out on you before it really wants to fall apart. It's just soooooo lean.
Now if you wanted to smoke it at a low cooking temp for a while and then wrap it air tight in foil I think that would work out. You would basically be doing a round about braise/steam cook on it while preventing juices and liquid from leaving. So I think you would have much better results this way.
In the end though I would cut that sucker into 1.5 inch chops, rub a little oil on it, season well, and cook it hot and fast on the grill like a steak until it hit 140-145F internal temp. You would have AMAZING chops.
When I can get giant center cut pork loin (not the half loin ends) I do this and I make a grilled chop that honestly rivals a steak! Just salt, pepper, onion, garlic, and a pinch of cayenne pepper on each side for flavor not for heat, and OMG soooooo good!