Sorry that should read, REMEMBER you CAN'T call a do over on a wedding.. I feel that a real PRO is someone that not only creates excellent images for his clients, but is always prepared when ever a new an potentially serious shooting situation comes up. Just like when all of your flashes die you can get usable images with high speed film. It's not the best answer but it may save your behind. REMEMBER you call a do over on a wedding.. Les Baldwin