I finally did a major Starsans screwup. I always add a bit of Starsans to my carboy after cleaning it so it is ready to go for the next batch. I dump it right before racking the next batch. I guess it was only a matter of time, but today I took the cap off the carboy, washed the cap then opened the valve on my brew pot and let her flow. After transferring about 3 gallons I was like, "oh snap". Anyway there was about 1/2 gallon normal dilution concentration Starsans in the carboy and the batch size was 6 gallons so final total volume 6.5 gallon. What is the chance that it will come out okay? Whats the most anyone has ever accidentally added and had the beer come out okay?