Can anyone help, I have a 2004. 5 with many up-grades, I've never touched the transmission, I do have the Banks Six Gun adjustable, if I take off and give the truck half throttle or more, and the truck is up to temp, it will slip every time between 3rd and overdrive or when the converter tries to lock up. Is the DTT the way to go? or should I look into the VB and a new converter? Any help would be greatly appreciated.