These look to be pretty similar in what they do. Are there really any advantages, one over the other? I'm leaning towards the SuperChips FlashCal as it looks pretty easy vs playing with toggle switches on the AEV item. I'm somewhat concerned about the SuperChips support as I've read a few complaints of folks claiming their service just play outright stinks. Using it to lower TPMS and recalibrate the speedo. Probably re-gear down the road. I'm interested in hearing what you folks think!