I often see multiple EVSE units both unused and offering only 30 Amps or so. What if someone created an adapter box with a little extra amount of smarts built-in that could safely combine (parallel) the two 30/32A EVSEs into one 60/64A EVSE connection for faster charging of Roadster? In principle, the two side-by-side EVSEs will almost certainly be from the same transformer feed (this can be detected by the adapter circuit) and if the power at the two J1772's are out of phase, (one is 180 degrees out), then the adapter can simply utilize a DPDT relay circuit to flip the phase on one supply, to put the two in parallel, and verify they are safe to combine. Presto change-o! DIY ~70A Level2 !