Earlier this was a valid option. Lot of folks recommend twin chargers because of fast AC charging. I want to find out if a car has a twin charger but owner does not have HPWC. If he takes the car to a Tesla service center, they will have HPWC and owner will be fine. What happens in the wild? If there are AC chargers with more than 40 A capacity, universal charger with the owner will not be able to get that amount of current. Do traditionally owners of such charging points have their own charging cable, which Tesla with twin charger will use rather than its own mobile connector? In that case does it have proper Tesla adapters etc. I may not be using correct terms but hope my point is put across.