It's not the internal settings (and a more detailed description of those parameters would be fascinating) that I am concerned with, but when you use VSTi's, and their associated engines. The Wersi's engine doesn't play the samples, something like Kontact or Halion does the playback. How THOSE deal with the weird codes that arrangers deal out is what will spell out whether things like this can be more than just a RH sound source.

I believe it is one of the main reasons we haven't seen the 'all software' arranger, yet...