Shimano Exsence Responder 109F Jet Boost 109mm.Shimano Exsence Responder 109F Jet Boost 109mm. Product Description. In order to realize dynamic fishing in shallow water, not only the swimming style and size of the previous RESPONDER were changed, but also the flight distance and the temptation of splashing water were increased. Especially when fishing in shallow water during the day or the slow retrieval fishing method commonly used in wild Large scale rolling movements cause fluctuations to