I have had very few deep hooked fish, as in deep in the throat on the Ned. I don't know why that is, because you would think fish would be swallowing it all the time. Usually for me, it is the Carolina rig (or the split shot) that will get swallowed.
But, good points Jim on fish care for deeply hooked fish. And I have seen the let them recover in the live well to release later thing work.