I recall that WDG tried something similar with Summers. Down at Skamania they spawned the 3-salt summers exclusively, intending to produce a bigger returning fish. It worked well, since saltwater age has a strong genetic component. Problem was that the returns were insufficient to replace the brood; the extra year in the ocean had too much mortality. The same will happen in Quinault; in years of low enough survival, there won't be enough making it back.