Willow blades provide a subtle flash and slight vibration and are most often seen on bass spinnerbaits to imitate a fleeing minnow, or a school of them. Simonson Photo

Colorado blades are a popular lead on big baits for muskies and pike. Simonson Photo.

Indiana blades are often used on spinners for trout. As summer fades to fall and stockers come shallow, burn these baits to connect with aggressively-feeding fish. Simonson Photo