I too am a fan of catching big kings and searching for my personal Holy Grail of a 70 plus pounder. I read an interesting article in Popular Science magazine a couple years ago where scientists genetically manipulated some Chinook using a gene from a very deep running bottom fish that lives in extremely cold water (some type of flounder I believe) and used it's growth gene to manipulate the Chinooks growth rate and cycle and produced two fish weighing in excess of 500 lbs. One was 574 if my memory serves me correctly. Although not a fan of genetic engineering I have to wonder what a fight that would be.