as suggested above, keep it under control, never right out stomp it unless u are able to monitor your rig, especially fuel pressure, just keep a tender foot and you should be alright, i always treat the truck as i wanna be treated but after every new toy i gotta see what it can do, as before im running an edge with a smarty, i tried the smarty on mild w/ edge lv 5 and within 3 seconds my fuel pressure was dropping to <5 soo i backed off, getting an airdog on wednesday installed soo maybe ill be able to tell a little more what it can do