YUM, Live Prey Technology or LPT, This stuff is Awesome, I watched a Bass Pro Shops tank seminar and the guy was using a Yum Houdini worm with a hook that was bent over of course, they frown on catching there tank fish, and a bass bit the worm and would not let it go the guy thought he had caught the fish there for about 30 seconds, and that was only with what comes in the soft plastic, just imagine if you spray the worm down with the YUM spray. The guy doing the seminar was very impressed. Why LPT, it simulates the release of live baitfish enzymes, which triggers feeding habits of bass, walleye, crappie, and other gamefish.