[Flieger]

A blade style is harder for the novice to adjust correctly because the stiffness is very nonlinear with the orientation of the blade. With changing lever arm length like with Taretts you have a very linear relationship between how much you change the lever arm (by moving the bolt closer or further from the bar axis) to how much you change the stiffness. With a blade type the bar is supposed to deflect only minimally and the one blade controls the stiffness. The problem is that the blade is in bending and unless the blade is at 0 degrees or 90 degrees the moment of area of the beam (blade) takes a lot more number crunching to find, and it is the moment of area which controls how much roll stiffness you are adding. I will put it this way: I am a mechanical engineer and I would not want to find that moment of area (even though I could); I wouldn't even want to write a computer program to find it - too much work! When I upgrade my sway bars I will go with the classic adjustable lever type.