I'll be using the Harris Ranch supercharger this weekend and called Tesla to confirm availability. The service rep on the pohne told me they have 2 chargers for the Model S and not 1. She said both were superchargers after i clarified if one was Roadster. Can somebody confirm Harris Ranch as being capable of supercharging 2 Model S at the same time? Also, she deployed a software update while on the phone which she said was to make supercharging issue free. I alread was running v2 so not sure what this update is. Folks have any idea?