I just got my car out of the shop and I had them remove the STB because it was pushing my hood up ( a knock off that a local shopped just forced on ) ...
The ride in my car is noticbley less harsh .... I pass one big dip leaving my driveway everyday and I instinctively braced for the harsh bump and it was more of a slight pat and also where there is a bridge cross every day no harsh bang when a cross ( it is a draw bridge )
Just an observation....
But is still not stock smooth for sure ...