Todd, " making a leap to the idea that the problem is right there " is independent of the possible conclusions made from long term hatchery supplementation studies done using genetic factors and behavioral traits to determine percentage of spawning success. Ensuring we know the actual selective traits of the supplemented stocks and why they work or don't in a given scenario means everything to the feasibility of the results IMO.

The biggest hurdle to recovery might be out-migrating factors, might not. How it affects the genetic studies is another beast entirely.