Wilson staff fg tour f5 driver the design of the wilson staff fg tour f5 driver was led by two time pga tour winner kevin streelman as he rigorously play tested and provided insights throughout its creation the result a refined 460cc head with one of the easiest and lightest adjustable hosel systems available the f5 driver boasts six loft settings and comes with 3 adjustable weights enabling the discerning player to fine tune ball flight for maximum distance fast fit technology green means