Update; my car was at the dealer last week for a leaking intermediate shaft seal. They replaced the seal and did an alignment. When I picked it up, it's driving so, so much better. The skittishness/instability I mentioned before, seemingly identical to what others have posted, is gone. I'd say that issue is resolved 90% of not completely. This was my fourth alignment this year. Is it possible the first 3 were just bad alignments, and the tech got it right this time? Or, could the intermediate shaft issue have any effect on handling? The car feels like new again, no more unstable tracking across uneven road surfaces.
Prior to this the car felt like something was loose, bent or broken while driving. Anytime you'd hit a rough patch of road the steering seemed to "wobble." Any thoughts on what that may have been?
Also, follow-up question...is the intermediate shaft the same thing as the FADA part that was updated? I noted they did not perform the TSB for that part, simply replaced the seal.