Sorrow of the Divine(use when adjecent flask is used) + Forbidden Taste(savage hit)

With new flask changes i was thinking about what is in title
from research i done is based on your maximum life wich means its not gonna work with CI but most of Low life ES builds could get decend amount of value from that combining with upgreaded soul of ryslatha (it does not say from life flask its says life recovery from flask so i ASSUME it should work with forbiten taste but there is no way of testing without puting alot of pieces together)

Im planing out Frobiten rites low life occultist so thats gonna be my testing ground