I've used the pink worm off and on without much luck. It's usually the last thing I try and I don't tend to use it for long.

I have a question for those that have used it with success. Do you just slide it on the hook, or do you also use the egg loop to rap around the head of the worm? I usually wrap the egg loop around it so that it will stay on the hook, but that seems to cause a small kink in the worm. I've always wondered if this effects its action. Maybe that's why I haven't had much luck with them.