I am thinking unless you put some bigtime scent that will stay on them they may not be as effective. In the eyes of a spring salmon, a plastic anchovy is no different than a spoon with proper action. I think it's the scent along with the movement that gets their instinctive nature to bite. We all know fish staging at the mouth have had years to feed and fatten up and feeding is no longer a top priority. Top priority is getting up river. IF you end up trying it out or if anyone has used this setup in the past let us know how effective they are. If I can get away from using bait I'd be all over that.
BTW, I'm somewhat new to the vancouver saltwater scene... where is this area called the fisheries that i keep on hearing?