Swallowed hook sometimes OK
The circle hook has yet another advantage. Though none of us like to see the hook down the throat of a fish, sometimes it happens with any type of lure, fly, or bait.
The circle hook, however will sometimes snag only a tiny “tag” of flesh in the throat because of it’s design. Remember the hook point actually bends back so it points perpendicular to the hook shank. This rounded point frequently grabs only a miniscule bit of the throat as it slides out, unlike the “J” hook which grapples a gob of flesh whenever and wherever it gets the chance.
On a recent trip out, a client of mine caught a small sunfish on a chunk of night crawler and this was just the case. As I opened the fish’s mouth and grabbed the line to see how bad it was, the small tag of throat flesh popped, there was no blood whatsoever, and I was able to release the fish all in about 30 seconds.