I used to use them many years ago with success. Then they stopped making them so I started tying yarn balls which was a pain but still worked well. I still have some yarn balls tied up but when I run out I will be going back to puff balls. I like to use them solo in low and clear water. Steelhead sort of chew on them like my pup with her favorite chew toy!
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"Government does not solve problems; it subsidizes them." Ronald Reagan

"The trouble with Socialism is that you eventually run out of other people's money." Margaret Thatcher.

"How fortunate for governments that the people they administer don't think." Adolf Hitler