Goose, I would have to dis-agree on the treble, from what I see and do everyday.
Almost everyone I know uses trebles here in Elliot Bay from the piers. The trebles do just as much damage, hooks through the head ,eye,back etc.... I say from what I experience and see single and treble do just as much damage on these little guys. I say that happens evenly out on the boats too. It is that time of the year hear in the bay , where they have just released 2 pens. Rivers are a little different since I don't use trebles on them.