The creation of the 4" 7-series Yamamoto Cut Tail's is an interesting story. Fishing in Japan on Lake Kawaguchi in winter time, Gary Yamamoto found the bass were cold and lethargic and did not want a full tail that wiggles on their worms. So he progressively cut back the wiggling curly tail on the 6" 6-series worm until the cut tail resembled what you see today. That summer, it was also discovered that the do-nothing nature of the Cut Tail worked on listless bass sweltering in the high temperatures of summer as well. It essentially became what is called a do-nothing lure, and a unique product line that is always catching something whenever bass are "doing nothing".