I always wondered the same thing. Although the Chambers stock was nice to have around in PS for early winter opportunities. Many new hatchery Steelhead programs in BC were exclusive in system native stock. Not sure about today. Even with that they seem to be having the same issues we are currently having. I haven't fished it for years but the Vedder R. was one that had really good success with there native stock program, and lots of stout fish to show for it.