In this recording I've used almost the full range of stops of the extension. In the very end I added the 16' chamade, sub-octave couplers and the bright Plein Jeu III of the Great (Metz Original). I've tried to keep the tempo as required by the composer imaginating a quite big cathedral space where a virtual instrument might be located. I'm still not sure about the balance/volume of the pedal stops and the Cb. 32'. It sounds different on different speakers or headphones. It would be nice to get also some feedback about this issue...