500mg in a single shot?!?!? If this post wasn't so well written and, in many ways, comparable to my own experiences with this substance, I would call bs. Considering how I was affected by much smaller doses, intranasally mind you, causes me to wonder if you're some medical marvel... All jokes aside, I applaud you for one of the most articulate and relevant posts I've seen. Not before or since have I tried a drug that hooked me so quickly and controlled me so fully. I wish you the best my friend.