Hey Guys. New to the HP tuning and still picking up the GM tuning. I have a 07 truck here with a LS3 Erod motor and built 4l80e. It was tuned by another shop but when the truck decelerates from about 50mph you loose all throttle response. You can put the pedal to the floor and the thing doesn't do anything. Finally after almost coming to a complete stop will it drop into gear and then go again. Here is the tune from the other shop. Any recommendations?