If your slow cooker is set on low, you will not overcook the pork if you leave it in for 8 hours, even if it's ready by 6 hours! [br][br]If you use pork tenderloin, your meat will be a bit leaner than the pork shoulder. It won't be quite as tender as the shoulder meat, but it will still taste perfectly fine and is a good option if you're looking for something a bit leaner.