Yamamoto 9B-10-901 Senko are tested and proven on California lunkers, Gary Yamamoto's Senko has quickly become a sensation throughout the United States. The Senko is salt impregnated, has a healthy profile, casts like a bullet, and features a unique smooth-and-even horizontal fall when fished weightless or wacky style. Yamamoto Senkos are not magic, but pretty darn close.