I'm having trouble shooting at night under stadium lights. I have the D3100 double zoom lens kit. Should I shoot with the 18-55mm or the 55-200mm? What setting should I be on? I notice I get blur and delayed shooting when I use the 200mm and I zoom in. My daytime pictures are turning out great. The kids love those. Now I know they will expect some good ones come football season time. Thanks for the help!