I understand that use of ayahuasca was transformational for you--and I'm so happy for you--but in your book you're going much further. You're describing an emerging drug culture with ayahuasca as #1 transformer. Here's the way LSD was presented long ago:
Definitely not recreational. For George Harrison at least, it was transformational., but his transformation was over years--like Christian conversions. From what I've read and experienced, someone who has a Christian religious conversion experience takes about three years to get that transformation to establish itself--but then it is very stable.
Most users in the earlier era settled for recreational marijuana. What about now, with ayahuasca?
Do ayahuasca users ever internally stabilize spiritually over years--like Christian converts? Or do they keep needing the drug to maintain their spiritual contact?
My gut tells me they need regular spiritual trips that never integrate into their day to day lives.
I don't think that either Roy or Fats would be satisfied.