Usually the first two weeks in Sept can be tuff...the fish are in a transitional phase from summer into fall patterns or staging spots. This puts them on the move and they will not bite well at all till.... they get settled in again. Allot of times a Nice lengthy cold front spurs them back into action. Welcome to the Grind, stick with it... things can change on a dime this time of year. Good Luck on your next trip.