Just picked up my Model S this morning, and adore it. Have a question about charging: we're almost certainly moving in the next couple months, so I didn't bother spending money to upgrade the garage to support a 50A circuit, and was just planning on topping off at home and using the chargers at work or the supercharger down the road from us. But I had a thought tonight: the house was built in 2007 and has a 240V plug which was included in the original construction of the house. In our breaker box, it's supported by two circuits - one 30A, one 20A. I don't think I can treat that as a 50A circuit, but could I set the charge limit in the car to 20A and use the plug as is? If so, that would certainly be faster than using the 110V plug in the garage... anyone have an informed opinion on this? Thanks in advance!