Why not leave it the way it is. And weither it is Broodstocking with native parents, Hatchery fish or true nates Spawning in the wild is all Theory = Science. Sure Nates might have a higher success rate, But it is also run timing, Not alot of nates in the systems in Dec when the hatchery fish try to spawn, Could that be because mother nature and raging rivers over time wiped out the earlier nates .It is all Theory, Projected returns are theory, Spawning is theory. This years returns are sure not what everyone projected and if you truely think the system will meet it's escapement this year, I will tell you that at this time last year the numbers where far higher, Just my rantings