So, those of you who feed raw: what comes out the other end? Bone splinters? Crushed bones? Or are they fully dissolved by the stomach acids? Come on, I genuinely want to know here, and I'm not getting much in the way of answers.

Admirable, dogs have not been wolves for many thousands of years. Their teeth have changed considerably since being domesticated. I don't believe they can chew bones as effectively as a wolf can. You don't believe me? Here are photos of a wolf skull next to a German Sheperd skull. Old Lobo has about twice as much ivory, and there are no gaps in his dentition. Unfortunately, the German Shepherd skull shown has a poor bite, looks like a wry bite.  But look at the big gaps between ALL of its teeth. Look at how much stronger the wolf's zygomatic arch (the bony bar below the eye socket) is, to reinforce the skull and give it more chewing power. Look at how much larger the big canine teeth are, and how much deeper and more solid the jaws are. 

Imagine how much greater these differences would be in one of our small breeds, or a short-faced breed like a bulldog or a peke.  You expect THEM to cope with a raw diet, complete with bones? I wouldn't! They no longer have the right equipment.

Top: Grey Wolf

Bottom German Shepherd