dodge guy wrote:
...the ones that need it are the ones that cannot setup their trailer properly.
Correct, and that's NOT a slam on the owners of the these TTs or the OP that they don't know what they are doing. Not all TTs are designed to have the best weight/balance when loaded due to the floor plan of the unit, where heavy installed items are located and where the storage is located. The 4-bar linkage design of the HA and PP make loading and balance much less critical for a smooth towing experience.
To the OP's question, I suppose that if your TT had marginal tongue weight, it's possible that a small degree of aerodynamic lift could impart some instability on the TT, but I think that's kind of reaching...you didn't say what question you asked the Hensley sales guy that made him offer up this statement though.
I can tell you that whatever is causing your handling issues on your TT, the Hensley WILL straighten it out. Doesn't matter what the tongue weight, whether the suspension tracks straight, etc. The only thing a TT can do with a HA attached is follow the truck in a straight line.
