So, no one bar you yourself has argued that. YOU said it's impossible to make it sound better and that you cannot add more effects to midi which is EXACTLY what this software does.

It CAN be improved on the SX900 or Genos as you now have many more effects available to do this with. In the same way it makes the S770 sound better, it can with these flagships also. I can just not demonstrate that with my S770 sound engine.

You have to inform the package that it's dealing with a mere S770 on start-up so that it cuts back on the number of effects used for the styles.