According to the Devices-> Plug in Information, MYSTIC, PROLOGUE and SPECTOR are all VST 3.5 … but I cannot find any option to apply Note Expression on these. I assume, it`s not implemented. Can it be implemented in a further Cubase 6 update? As Note Expression is only availbale in Cubase 6 (full), in the Artist version it would be ignored, so no problem to maintain the Note Expression thing in Cubase 6 only.
Besides it would add some extra value to Cubase 6, as we would no longer depend on Halion Sonic or Halion Sonic SE.
All the best.