When returning from International CES in Las Vegas there was one car in the far left spot (1A). I parked the second spot (2A). Perfect charging speed occurred. (Spots are ordered: 1A, 2A, 1B, 2B.)
Later arrivals got cheated. Here's why: The car in 1A left. The next car pulled into 1A. Not a problem until the next car arrived and pulled into 1B. So when I left from 2A, the remaining cars were sharing one charger at a slower speed.
So how should it be done? Here is the answer: After the first car left, the 1A spot should NOT be used. Continue filling the spots to the right. Car 3 should have pulled into 1B. Car 4 into 2B. Then when I left 2A, both remaining cars would be at full charge power.
I would like Tesla Motors to install red and green lights above the parking spots. All would be red except for the next spot to be used. This would clearly help reduce error and optimize the usage of the SuperChargers. The lights could also indicate if a station was not available for use.
If this is explained on some other thread, please post the link below.