In the PNW, there is a large coterie of fishermen who use surface sliders (pointy end forward instead of the blunt cup face forward) for searun cutthroat and coho salmon as well as bull trout and whatever bites. In this situation, the surface lure can be highly effective.
I've also used Gurgler-style flies for searun cutts a lot. Will either work in fresh water on trout? It would be interesting to find out...
For info on the popper/slider, go to
www.washingtonflyfishing.com and do a search for Miyawaki Beach Popper. You should get more than you want to read.