Does anyone use these on their meat rigs? I've never used them for anything, let alone Walleye, but one of the guys that we're going with this weekend said he was going to buy the bait and said that's what he was getting.

My question is, has anyone ever noticed these to be a deterrent for the walleyes and/or a magnet for trash fish? I've never even thought to use them because I've never had a need to use anything but a regular crawler (and I thought the green variety was a bit more expensive). I'm not sure I've ever even used the damn things for anything at all.