I sure miss the xcal I used with my Mustang, this Mycal device is so painfully slow and the car does such weird stuff while it is writing the tune. The xcal would be done in a minute or just over but the Mycal, turn on, turn off, turn on, turn off along with everything else. I may just have to switch tuners and go with Unleashed so I can use the xcal. Question for you xcal owners with the SHO, does it upload the tunes quickly or does it take 5 minute or more like the Mycal. Just curious because if it take as long then there is no reason to go that route. I hate spending money on two devices that do the same thing though but I will.