This is strictly opinion that is gathered from hearsay and experience. I believe that the white king is mainly diet influenced. Some kings eat more baitfish than krill, and thus they may be more inclined to having white flesh than red. Last year we caught 8 mature kings in the same spot in 2 days. Four fish had deep orange/red color of the flesh, the other four were varying shades of white with one fish half red/half white. At one time the commercial fisherman couldn't sell a white king (no demand) so they kept them for their own use. Soon people thought that if the "captain" kept the white king it must be the best. Personally I like red kings better because it's easier to tell when they have finished cooking on the BBQ. If a planted trout has to live in the wild, some of their buddies will eat insects (pink meat) while some will eat fingerlings (white meat). Any real qualified answers would be appreciated. snit