I am very frustrated with my slow cooker. I have a West Bend "Versatility", which was a gift several years ago and I think was well reviewed on Cooks' Illustrated. This is the second time I've used it and AGAIN after an entire night of cooking my meat is raw in the middle! Last night I put 6 lbs of pork shoulder in the thing and set it on "low". 10 hours later, totally raw in the middle. This happened once before when I tried to make a chili with ground beef, so I don't think it's just the mass of the meat. Do I have a lemon? What's a better brand? I'd love to use this but I don't have time to then re-cook everything from it!