That's good to know. Guess it's not any better than other artificial baits. I have switched from shrimp to doughballs in my pond. The fish like them, but they can get them off the hook really easily. I may get some worms today at Walmart. Though I have had times when even worms were unappetizing to the fish. !
I've used them for several years with some success. They work; but I don't use them that much any more. I don't really like the treble hook (often seems to get with two barbs and harder to unhook and worse when bass nails and tries to swallow). I should switch the treble hooks to single; but haven't yet. Overall, I think they work fine; but in my experience, other lures are probably just as effective, easier and cheaper.