I made these and they worked pretty good on thicker body baits like tubes and craws... Not so much on thinner baits as minnow, sinko, drop shot baits..
http://www.bbcboards.net/showthread.php?t=817132
So today I made the mold to accept the barb style keeper for thinner baits.... These are line through.
http://www.bbcboards.net/showthread.php?t=822056
They worked great this weekend...