Again, as I responded in your thread about Telefunken/USA's "VF14k", I have no experience with this tube or whether it (and its associated circuitry) handles SPLs of this magnitude better or worse or differently than an original Neumann U47 with an original Telefunken VF14.
(By the way, I HATE the fact that more and more companies which issue copies of famous mics have taken free range in shamelessly naming their products after highly respected microphones of the past. Neumann and the Telefunken holding company were negligent not to protect their former trademarks better. This practice of issuing look-alikes with similar names dilutes product brands, and misleads consumers. Can you imagine Dom Perignon, Armani or Porsche tolerating such practices?)
Anyway, if this were an original U47, I would take advantage of the mic's propensity to compress under high SPLs. That compression sounds best, to my ears, at a distance not less than three feet from the sound source. Not many tubes I have heard do that type of musical compression beautifully, so youwoudl need to listen for any onset of harshness, or frequency imbalance towards crunchy mids, and back off from there.