I think you would be shocked by the number of 17-20 lb hatchery fish that get caught... but most steelheaders that I know wouldn't show a fish like that out of their system even for the braggin rights.. there would end up being a blanket hatch of radio fishermen 2 days later.. and I also find the common opinion that nates are bigger than hatchery fish to be ridiculous.. 17-18 lbs is not that far for of a reach at all for a hatchery fish.. now 21+ lbs is gonna be more common in natives, but so are 4-5 lbers.. my top 7 biggest fish in the lower 48 last year were hatchery fish, my 8 smallest were natives.. and a Monster steelhead starts at 23 lbs.. and that fish is a ****ing boot... you can't pay enough for a smoker that can fix that... the thing looks like a sockeye in august... but as I said earlier, nice big fish.. 18 lbs is big.. luckly it looks like it got to pass on the genes-