This is how fast tracks can load into Reaper from a Biab project being able to read the BBoutput.txt, no waiting for rendering down to consolidated wavs. The wav wma m4a aiff RealTracks and Drum source files can be imported directly or batch converted to any format and Reaper will load the RealTracks\Drums in that format directly into Reaper flac, mp3, aiff, m4a, wavepack, ogg, wma, wav
The BBPlugin can be made to be as fast as this.
This way would also work with Studio One and Ardour or any others with scripting:

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