I'm just wondering and I'm sure everyone has their own take, but what is your most used focus mode for weddings? I'm shooting a beach wedding this weekend with the 5D2 and I'm planning on using AI Servo mostly, but is it the best choice? If it's lower light and I have my flash, then I use one shot as I get the beam assist from the flash which really seems to help. What are your thoughts on the best focus mode for this situation?

