My situation is that I am cooking chicken breast for 200 for my sisters wedding, but of course I want to be at the wedding. I will be cooking it in electric roasters so I am concerned about timing it just right. There will be a fairly thick sauce. I am not sure if it will take longer to cook because of the amount of food in the roaster? I have enough roasters that I don't have to over stuff them too much, but the chicken will not be in a single layer. I have about 2 1/2 hours between my last moment with the food before the wedding and service time. Do I need to worry about drying out or the opposite, sloppily over done? or worse, some done and others underdone? thanks for any help.