Most tournament fishermen have pulled a fish from deep water at some point, and know the pain of struggling all day to keep it alive, only to weigh it in dead at the end of the day.
When pulled from deep water, the air bladder swells and will cause the fish to "belly up" in your live-well. If it does make it to weigh-in alive, its chance of survival when released is minimal.
Attach one or more FlipClips to the fish's bottom fin and your fish no longer needs to focus its energy on turning over to submerge their gills back into the water. The FlipClip is a fish-friendly accessory that significantly increases a fish's chances of survival.