CFM,

All my 5/0's say "Hatchery Fish Only Please". Problem is , there just isn't enough room to scribble "Please" on a 3/0. wink

One observation though on behalf on larger hooks is they are definately much easier to remove when releasing fish. Personally, I just can't see that much difference in the size or severity of wound made by a 3/0 as opposed to 2/0 hook. At least I'm sure we can all agree that a 1/0 barbed can do far more damage coming out than a 3/0 barbless hook.
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Matt. 8:27   The men were amazed and asked, “What kind of man is this? Even the winds and the waves obey him!”