I spend about 6 weeks every year up in Northern Wisc fishing, mostly on a fairly smallish bass lake the family has property on. The senko type worms, by FAR, are my most effective bait there, year in and year out. I've tried most of the non-Yamamoto stick worms. If the fish are biting, pretty much any of the work well. But when they are playing hard to get the genuine Senko just works better. Have proven it to myself enough times over the years that I don't even look at the off brands anymore. I get the bulk bags of the real McCoy. Kind of a pisser they don't last more than one fish per worm, but with all the other money we spend catching these critters, the cost of Senko's is not gong to break me.