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If you are going to cook them to 145, then don't have them cut to 2". Pork shoulder is very tough. Cut them thin, and then pound and/or marinate to tenderize.
You can see the blade bone in the one on the left. Take them to 180, they are not loin steaks. For loin you would take them to 140 & a 30 minute rest would bring them up to 145. These need more time to break down & tenderize.
Al