If they catch fish like a GY Senko I will give them a try. Do they have allot of salt? Lets consider problems with wacky rigging a senko, without an O ring they are one maybe two fish baits and that equals expensive. So if you roll that bait over does it have a small center O ring, built in? I have noticed when you rig a senko wacky with an O ring and do not touch any plastic and use the O ring its has a better action.T Trying to get the fish to key in on the center, the hook, and the color change could provide that. In windy days I add a nail weight, perhaps this system you can add weight and or they are weighted centers? If this eliminates the need for O rings and nail weights, add increases hook ups that's a three for one bait, and I like that maybe even a 4 for one.. I buy one bait that is a three for one, hula grub, you can make it into a twin tailed grub, ika, and leave it as is, three for one... It could also be the centers are the new O ring, and the worms are really slim in the center to accommodate this new MegaO ring, but what I mentioned above can still aplly.