My daughter is 15 playing 18u B. She is a pretty decent hitter. Can hit the junk ball pitchers and can hit the decent speed pitchers very well. But she struggles a little bit with the quicker pitchers. I noticed that as she starts her swing she tends to pumps her hands. Now even when she does that she swings pretty good. She is second on her team with extra base hits, so she has pretty good power. I just dont know how to fix her pumping her hands when she starts her swing. Any help would be greatly appreciated.