DAEGU — Before he steps into the cage for his pregame batting practice, KT Wiz outfielder Sam Hilliard hits rubber balls tossed by a coach. Hitting them is not just for fun. Hilliard said he first did it a few years ago while in the U.S. minor leagues. He stopped hitting rubber balls but then returned to his old practice ways earlier this year at the suggestion of hitting coach Kim Kang, as he was trying to break out of a slump in his first Korea Baseball Organization (KBO) season. Hilliard was batting .232 at the end of April, the lowest mark by any qualified foreign hitter at the time, though he also had five home runs in 28 games. In May, Hilliard burst out with eight homers and a .350 batting average in 25 games. He has not looked back since. He finished the year by leading the KBO with 139 RBIs and ranked second with 44 home runs. He has thrived in his first Korean Series against the Samsung Lions, too, batting .583 (7-for-12) with three doubles and three RBIs in three games. No one has more hits in this series, and Hilliard has hit one more double than the entire Lions roster. In