Obviously not enough TV to CONTROL the TT. 1/2 ton vehicles have soft mushy suspension systems which allow the TT to sway and fish tail. The TV is probably a short wheel base Tahoe which is also a problem, the longer the wheel base the more control over the TV. See rigs like that swaying on the hiway all the time. Many don't want to spend the money for upgraded suspensions, anti sway bars, and WD hitches. All you can do is cross your fingers, floor board it and hope you can get around them before they loose control on the hiway.