Just the consistency of the meat. It seems lately that my meatloaf has had cracks when cooked. It has been crumbly, and just not sturdy for lack of a better term. I have started using oatmeal instead of bread crumbs, and I bought a new spice grinder and am running it through that. It comes out almost as powder. I have also started mixing the meat and spices with the Kitchen aid (I guess a big no no with Alton Browns meatloaf) and am really pleased with the results. This was also the Safeway, USDA Select Rib Roast with 35% fat added. I was very please with the taste. Had a couple of cheeseburgers made with the blend too, and they were wonderful!