this may have been discussed, or may be common knowledge but wanted to share personal experience.
most people, i believe, know the >1hr protocol on tolerance. but it seems on subsequent attempts separated by ~20 mins, adding more and only needing one or two tokes blasts you back from whence you came.
only explanation i can think of is a higher plasma concentration? but im no scientist.
edit: yeah its 20 for me too ... typo
and anything ive posted is an illusion and i do not condone any of it