red prawns do work and they can be fished drifting with eggs or under a bobber as well. last year i was fishing a Columbia trib for fall Chinook with five other gentlemen and three of them were consistently hooking up and had all gotten there limits by 9am and I still had not even a slightest slow down or wiggle on my bobber and they were using sand shrimp and egg combo I had bought some of the dyed prawns and walked back to my boat to get them. it took only one cast for me to get the take down with the prawns added and another 20 minutes to fill my tag for the day there were 2 other fellows also fishing the same hole with just the eggs and when I told them what I had just changed to and handed them the prawns they could not believe that was the difference beetween catching and fishing while I was readying the boat to continue my float for summer steelies they had landed 1 fish and were fighting another. I will never leave the house without dyed prawns again