All creatures evolve to an extent so to an extent I think one needs to try new things every once and a while. Obviously there are so many variables we could generalize forever about this. I think it would be a mistake to draw any conclusions on what a walleys "world" is like just because we live in a state of flux ourselves. I would assume the old tips and instructions discuss the use of a night crawler which is seemingly been a player in the walleye world for as long as I've been alive.