By Tom Dodge Sports Editor It was a high scoring contest for mercy-rule win as St. Edmund rolled to a 19-9 victory Wednesday over Avoyelles. The Lady Mustangs jumped out to a 2-0 advantage in the first inning, begun when Randi Mayeux reached on an error, Mac Lemoine doubled and both scored on a hit by Ali Bardwell. St. Edmund responded with eight runs in the bottom of the inning to retake the…