I have to second what granpa2 says here...until something is done about the gill netting, what's the point? Especially when "foregone opportunity" comes into play? I can release wild fish until I'm blue in the face and a gill net comes along and undoes it all in a heartbeat. There must be a way to harvest hatchery fish without dramatically endangering the wild runs...fish traps possibly. Something where the un-targeted fish can be released reasonably unharmed.

edit: OK, I never answered the question....
C&R until 100% escapement....Think about it....it we did this, there would be no need for a season length limitation at all.....but the trick would be to monitor that escapement remains at 100% or better. (Boy, am I dreamin'!)