Three Iowa schools begin N-A-I-A regional softball action in Des Moines, tomorrow. William Penn is the third-seed and will play host Grandview in the opening round. Penn coach Mike Christner says his team is taking momentum into the post season.Christner says they have a tough matchup against Grand View in the opener.Christner says against a good hitting team they will need to play good defense.St. Ambrose is also in the field and is the fourth-seed.