One problem I have faced using my old favorite 3/0s and 4/0s is really an issue on smaller fish, like up to 6-7#. The gap on the big hook can drive the point through the fish's eye. Doesn't happen often, but seldom is often enough for that kind of maiming of a fish that is planned for release. Never had that problem with 2/0 though.

GS
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"It's NOT that much farther than the Cowlitz!"

"I fish, therefore someone else must tend the cooler!"