[Rodrunner]

Well, it took quite a bit of time to read through 13 pages of posts, and thanks Tran for limiting that somewhat, but I did learn quite a bit. Like UCF w00t, I had trouble seeing how resonance could be the issue, thinking that was only a problem with larger sprung masses with large moments, such as airplane wings and suspension bridges - we all remember the Tacoma Narrows bridge - but it is true everything has a resonant frequency and no other explanation makes sense.
Mass, or weight, of the car sets no limit on solving the problem, it's strictly mathematics. So, it's a bit unnerving that the folks at Brembo got the math wrong. And yes, the weights are not an acceptible solution, but apparently a proper one is coming for the early builds. Just one of those first year build things any initial buyer has to endure....and we all will!!!