9.0.20 experience so far?

Using VEPro, the setup is as follows:

  1. Create instances of VST Instruments, assign VST Instrument outputs in VEPro
  2. Load VEPro (instance(s)) on the VST Rack in Cubase
  3. Assign VEPro Outputs in Cubase
  4. Use effects or processing in either application

Workflow:

  1. Load VEPro and allow VST Instrument instances to populate sample data
  2. Load Cubase projects containing MIDI and audio files

VEPro loads and unloads much more quickly than any DAW ever will and does this without any of your DAW(s) having to be active so any audio driver issues can be dealt with independently of your loaded Instruments and effects, which means your instruments are there ready for any project or DAW you wish to use.

Since there are few if any VST instances loaded in the DAW, other than VEP itself, project load and unload is quick and less prone to crashing. If you are using only MIDI it is seconds.