Welcome Stitch, I'd say if the prey fish will fit in the mouth of the predator then it's game on. In other words, if the prey's largest solid girth is smaller than the mouth gape of the predator, the predator would, at least, try to eat him. I think the 10" LMB/6" CC scenario is on the line and hard to speculate what damage would be done to the CC population. However, it would not take too many three pounders (or larger)to put the hammer on a bunch of 6" CC.
