I have heard that kits that are started out on raw learn to use their paws to hold down their food, but converted adult kibbleheads don't. See if you notice anything like that in your crew once we get to the big pieces. It makes sense. You don't need your paws to wolf down a bowl of kibble!
It's all going rather well. They readily eat big chicken and pork chunk now. (I haven't been able to get beef heart in a while.) Is there any next step I should be taking? Maybe starting to offer chicken wings and bone in little drumlettes would be a good start? What other organ meats should I be trying?
If all you have is chicken wings you can definitely offer that and see how it goes. If they look totally perplexed as to how to deal with it try smashing it into a pulp with a hammer or mallet. Sometimes they need to see the marrow inside the bone to figure out that it's worth their effort. Other bony bits to try would be ribs from chicken or rabbit, all of the quail, chicken necks (you can slice these into manageable pieces easily), frog legs if they'll go for it, all of cornish hens. Always be sure that there's plenty of meaty meat on the bones you're offering or add boneless chunks to their meal.
Offer any organs you can find. Kidney, spleen, thymus, brain, etc. Questionable are things like stomach and intestine since these are usually cooked and bleached and have no nutritional value left.
As always, keep an eye on the poops and their behavior. If anything gets too out of whack we'll review what we're doing and make adjustments.