I bought an NEMA 6-50 to Tesla adaptor cable and just plug that straight into the Tesla charger and into the car. I considered keeping the Wattstation in case I get another EV that needs it, but I have too much stuff already. Glad that somebody else can get use of it.
GONE - 2015 FFE, Magnetic with leather interior, debadged & tinted
38,500 miles (since May 2015), average 246 Wh/mile
REPLACED WITH - 2018 Tesla Model3, LR RWD, Obsidian Black
11,000 miles (since Nov 2018), average 235 Wh/mile