OK Lynn, while I was waiting for an answer to my SOS, I decided to save my OWN ship. Instead of the last case structure, used to split the averages into 1-3 and 4-6, I used local variables. Since I'd already calculated the 6 individual averages, and just needed to calculate the "overall" average, this seemed the easist appraoch. As for timing issues, I haven't seen any so far, but we'll see how it does running 24/7. Thanks for the input though.