I'm from NJ on a road trip to Edmonton via Seattle. We stayed in Canmore a couple of nights and used the Supercharger there on three different occasions. The first time, when we arrived, we got a max charging rate of about 124 mph and the next two times only 90 mph or less. On other Superchargers on our trip we normally get about 290 mph if we are the only Model S there. I'm just wondering if local owners know if this is a lower amperage SC or is there some issue with it?