Hi everybody; first post. I took stock of my garage situation and have determined that installing a 240V / 50A NEMA 14-50 outlet (40A effective) is not economically viable. However, installing a NEMA 5-20 outlet (16A effective) would not only be viable, but would charge the Model S 33% faster than the standard NEMA 5-15 outlet (12A effective, or 5 mi/hr). It may not be a huge difference, but that difference adds up to 20 miles over the course of a 12-hour overnight charge. Does anybody know if NEMA 5-20 is an option for the Model S charger, and what the downsides or caveats are? NEMA 5-20 is listed for the Tesla Roadster, but not the Model S.