I once had about a 10 inch LMB in a tank. When I fed it craws, even large ones, it would rip them apart and eat them if it couldn't swallow them whole. A dozen or so every couple days. It would also eat a dozen feeder goldfish in less than a half minute. I kept it through one winter, and then put it back in the pond as it got too much of a hassle to keep fed.
Thanks for the info John,
I guess I never considered that LMB could actually dismember crays.