Tabata, who has just 17 career homers in 1724 career plate appearances, worked on a power stroke in the Mexican League over the winter, the Pittsburgh Tribune-Review reports. Manager Clint Hurdle said that it will take time for Tabata -- who spoke with Marlon Byrd about the change in his swing -- to feel comfortable with his new approach. "We've talked to Jose about putting more leverage in his swing," Hurdle said. "He worked very hard with that through the winter. He's shown a liking for it." Tabata has mostly struggled since his rookie season in 2010, but since he's already signed for the next two seasons to a guaranteed contract Pittsburgh is looking to get something out of its investment. Tabata is not a lock to make the Bucs out of spring training.