I would imagine they would catch some fish. I think people put way too much into what they are catching fish on rather than fishing the right location. You could be using the best lure in the world but if you arent putting in front of fish you still won't catch fish. What is that old saying..... 90% of the fish in the lake are in 10% of the water....
Two weekends ago me and buddy were out on erie and we fished nothing but prototype baits that we made or rigged. We made spoon harnesses, which is just a harness with a spoon rather than a blade. The spoons were rigged a variety of ways as to try and optomize the action. We made spoon harnesses with spinners on them too and we fished nothing but gulp and just plain old rubber worms. We tried some attractors in front of the harnesses as well as a variety of small flashers and dodgers. We also always had just a spoon or an old fashioned harness in the water too. Don't get me wrong, this was not exactly scientific but we did catch fish on ALL of the lures mentioned above, some more than others, but they caught fish. Color and depth of where they were fished seemed more important that the specific harness being used. In fact the rig that caught the most fish was a sponn harness with a willow blade fished behind an inline double bladed spinner attractor then fished behind a dipsey. It didn't catch a ton but took 4 fish. I feel that it was more of having the presentation in the right place rather than the setup itself.