I just want to congratulate VSL on their excellent manuals. I have been using Altiverb but was also in the process of considering IRCAM SPAT or MIR Pro for a more precise spatialization/reverb plugin, both being $$$. What I found was that the documentation/manuals/tutorials for SPAT and its binaural/surround plugin HEAR were virtually nonexistent and/or indecipherable, while the MIR Pro manual by comparison is extremely comprehensive. I can't believe it, but my next purchase is going to come down to the quality of the manuals/supporting materials!
Thanks!
CirclingKailas