Does anybody know the amount of ground leakage that is common when charging the Model S? A couple of Model S owners here on TMC have posted about problems using ChargePro and Schneider charging stations, both of which are cheaply built in China using an incorrect 5 ma threshold. The Roadster leaks 18ma and won't charge on them. Clipper Creek, Coulomb (makes most ChargePoint), Eaton, GE, most AeroVironment, and most Blink use the proper 20 ma threshold. Has anyone had any luck with ChargePro or Schneider? If so, do you have dual chargers or single 40A?