GRANITE FALLS — Bennett Knapper set the tone for Granite Falls on Wednesday night. The former Southwest Minnesota State University Mustang homered in the first inning as the Kilowatts earned a 10-0 seven-inning Corn Belt League victory over the Wabasso Jaxx at Richter Field. Knapper, who went 2-for-4 with three RBIs and two runs, helped Granite Falls improve to 8-2. Wabasso, which has one win against the Willmar Indians, has lost four in a row a…