i use (by most standards)unnecessarily light tackle, so most of my fish are landed after a long fight. i would never try to boat a large 'green' fish. things can go bad too fast if a fish is fresh. and yes, after a long fight there are times where you have to revive it for a while before it swims off. i land all of my fish by hand, t-boning them right in the narrow spot at the top of the gill plates. then i set the rod down and grab under the gills.

in this order in this fashion is my style
step 1
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step 2
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step 3
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i have large hands, so this method may not work for you. the orange jaw grippers are probably the safest most consistent method.