Ben,
I am confused where you are getting the 14 and 2.7 numbers. My pool is 22,000 gallons or 2,816,000 oz. Four gallons in the bucket is 512 oz. By ratio, if I add one oz bleach to the bucket that would be equivalent to 5500 oz to the pool, or 43 gallons of bleach. Your numbers say a 1 oz dose is equivalent to 5 gallons of bleach, which is much better, but I am not following the math.
Additionally, according to the pool calculator, adding one oz bleach to 4 gallons will raise the FC by 121. I am not trying to question your theory I am just trying to get the numbers to make sense in my head, as I am a dorky engineer! Thanks.