To keep them on the hook you have to tie an egg loop knot. This is a not with a loop to hold the bait as the name implies. I drift this with a small corkie (pink, red, orange, black, green) for contrast, small snip of yarn (pink, orange, peach, red) tyed to the loop; the yarn keeps the line from cutting through the bait. I will also add scent to the yarn.

Fish On!!! laugh

[edit] the egg loop is also used to tie yarn to when not using bait and to hold most other baits.
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They say that the man that gets a Ph.D. is the smart one. But I think that the man that learns how to get paid to fish is the smarter one.