Justin Morneau is hitting for power again this season. Now he's looking for more consistency.

Morneau has 10 home runs and 10 doubles in 40 games. Those extra-base hits have given him a .500 slugging percentage -- one point above his .499 career slugging percentage -- even though his batting average is a mere .237.

"I've been able to contribute that way at least, hit some balls over the fence that have helped us win some ballgames," he said Wednesday. "If I wasn't doing that, I'd probably be even more frustrated than I've ever been."

After saying that, Morneau went 2-for-3 and delivered the go-ahead, two-run single as the Twins defeated the Royals 4-2.

Before suffering his concussion in July 2010, Morneau was a candidate for a second MVP award, batting .345 with a .437 on-base percentage and a .618 slugging percentage. It's not just his batting average that's suffered this year. His OBP entering Wednesday was .297.