We have an S and X and I found a 14-50 splitter that allows me to plug our 2 chargers into the one plug, then we just set the charge current to 18-19A on each car and charge overnight. For our normal weekly commutes that is more than enough charge rate to keep both charged. Rare occurrence of a big trip taking the charge on one to under 50A may take it a few days to catch back up to the 85% mark for the daily charge. Works for us as our daily commutes are only 70-80 miles. Was going to do the dual HPMC, but why spend $1k+ when I got the splitter for like $100 I think it was...