I have some michigan stinger dive bombs and they work the same way. Tried them quite a few times. They work...but do have a different searching action than straight copper or core. The heavy ones drop like a rock on the inside of turns. And are a major pia to take off on a hot fish (and require an extra person). Never had tangle problems, but I'm careful with my turns and usually only run 1 junk line per side. If you only have one or two short copper's you can cover different depths on the cheap. But I prefer straight copper or cores. IMO these are better for walleye fishing.