My butcher didn't have a 7lb butt cut so I got two 4lb cuts and he did a great job tying them together. However, my meat is now just at 5 hours of cooking at exactly 225 degrees and is already at an internal temp of 154. Is this do to it being 2 seperate cuts tied together? Not exactly the 14 hour cook I was expecting. Anyone have a similar situation and advice for me??