I have owned my V20 since last October. I am an inexperienced photographer at live concerts. I am very fortunate to have tickets to Paul MacCartney from the 3rd row from the stage. Should I just shoot photos in automatic mode or manual? With a flash or without? I shoot most of my photos now in manual mode but they are just "still" pictures. This is a live concert with the lighting constantly changing. Any advice for shooting live concerts is greatly appreciated 