Charged @ Cookeville 7/29 with my Model S 100D... Disappointed at the relatively slow charging speed. (Although, I've been to a couple or three that were even much slower.)... Started at near full rate, but quickly dropped to 70 KW, then less. Moved to a different slot with no better results. That day I charged at 4 SCs along I-40 in NC and TN, all from a fairly low battery level (Greensboro; Hickory; Knoxville; Cookville). Hickory was by far the fastest (about the fastest I've yet used), followed by Greensboro, then Knoxville, with Cookeville dead last (although Knoxville is the worst for traffic). Finally gave up and left Cookeville with lower than planned charge level. Learning, with some regret, that not all Superchargers "are created equal"... But, hey, the 'price' is definitely right.