Although I used the term suspension system, I could have also said "tuned suspension." Assuming an infinitely stiff frame, if you change a part on the suspension and don't consider the rest of it, the resulting performance could be worse, or better in specific instances and horrible in others. Yet, whatever changes you make, shocks are ultimately the final tune of the suspension.

It's similar to how you build and tune an engine.

 

Spike,

How important is the sway bar end links in the final "System".
The reason I ask is that the Roush kit doesn't address this
issue, and I just want to make sure I'm not "undoing" something
important. With the advertised drop, I wouldn't think the
endlinks played that big a difference, but I defer to your
experiences. <grin>

 

The best way to answer your question is this:
How much does the moment arm of the sway bar change when you rotate it from lowering the L? The moment arm is the distance between the sway bar connection at the frame and the connection at end.
(....it's a very small change....)