I just started using them this spring for walleye. Water temps at 55 and as high as 70. Always seemed to produce good fish this year. I believe the key is the baitfish. Find the baitfish and the spoon is very productive. We just simply rip the spoon vertically off the bottom the let it flutter back to the bottom feeling it all the way down. The strike will come on the fall 9 times out of 10. I really like the bass pro x treme series in the 1/2 oz. Got a nice pattern to it that I really like.