Hi, We are new to the Ford Family. Just bought f150 Super cab and want to tow a 28' Heartland travel trailer ultra-lite. (5290lbs unloaded). We have always used cruise control. What are your thoughts about tow haul? Should we always use tow haul when towing? Should we use it only on hills? Can we use cruise control at the same time as we are using tow haul? Thanks. T