Hi Philip, My car hasn't arrived yet but my charging solution will be somewhat similar to yours. Recently Tesla has included some FAQs documents in our dashboard and it mentioned one of the reason why they don't suggest 13A charging is the reliability of the plug. With repeated plug on and off the quality of the connection may deteriorate and causing short circuit or fire. I am dealing with the management office to allow me to install the stock wall connector rather than just a BS1363 socket. This may solve the above mentioned problem.