Hi Mike,

I have used them before, again like RRR for Blackmouth, when I was going to be trolling and unfortunately my bait would be in the water for a while. They do save your bait, and I would only use whole herring.

These things are relatively cheap, so head off to Sportco or Outdoor Emporium and buy one of each brand to try for rotation speed, etc. My best success has been with the one that, forgot the name, is reddish pink, and is basically a u-shaped-clip with a vane on one side that makes it spin.

There was one of these things out there that you had to buy specific triangularly cut pieces of herring filet for that was all the rage up on Orcas when I live up there. A lot of the blackmouth fishermen swore by them, but you had to buy that company's specially prepared bait.

I brine my herring the night before in a VERY heavy salt solution when I am fishing plug cuts, and I will change baits every 30 minutes or less. Luckily, that has yet to be an issue up a Sekiu.

Andy