Found out something yesterday and thought it would be useful. Charging at 110 V helps load level the pack, apparently if you use the 110V to charge instead of the 220/240 or 480 the rated mileage will increase. It will not do it during the first charge and will take months to get it, but I heard from a Tesla rep that the journalist cars almost always plug in using the 110 and they are getting over 300 miles of rated range per charge. I guess the takeaway is that if you can use a 110, use that to charge the car. I'm going to be doing that from now one, it may take a while to charge, but it's OK.