Smelt like to hang in the water column in loose schools. When foraging they spread out some and sit motionless in the water, at a slight head up angle. Thier plan is to silhuet prey from below. Smallies often key in on smelt like this.
Also, you guys didn’t mention the X-Rap. I have had great luck with this lure for walleyes and smallmouth both in lakes and rivers.
When I asked my icthyology proffessor about color choice for walleyes he said that it is not important. Walleye have very few color receptors (the cones), but instead nearly all rods, and are for all practical purposes are color blind. This is part of thier adaptation for noctournal foraging. I think this explains how walleyes can be caught on firetiger colored lures, that don’t look anything like food.