I had about 700mg of pure MDMA crystal when I was 17 in Ibiza... it was probally my fifth or sixth time doing it, it was sort of by accident. Anyway I was rushing so hard I thought I was going to take off! I was stood on a rocky pier in the dark sort of out to sea and I was tripping I was above the clouds it was amazing but intense ha anyway the come down was bad but nothing to be scared off, had brain zaps for a long while though after