I am watching this with considerable interest, and hope it turns into thread of the year…
Keep in mind that the dynamics are very different for powered wheels vs. trailing wheels being steered indirectly from carbody ‘guidance’ (including “Talgo-style” truck arrangements or Jacobs articulation).
I believe Mr. Goding has already discussed this in some respects; as I recall it was brought up in Wickens from ‘the opposite perspective’ regarding wheelset stability in unpowered trailing vehicles. I look forward to seeing a full discussion.