Have you been following the thread?
If all of these competent techs looking at the suspension can't fix the problem, maybe it's not the suspension.
Rattles and sounds come and go. That is why when you take it to the dealer hey can't replicate the sound. Have you been reading the accounts of this phenomena on this thread?
My point about the tire rotation etc, is that tHe sound was not related to rotating the tires, it just SEEMED like it, because sounds come and go. When someone replaces the struts and the goes away, you think that was the fix. UNTIL it comes back, that is. Was it it fixed? Or did it just go away for a time?
As far me starting my own thread, my posts are as good as anyone else's on this thread.