Most ever at once, well at the start of my very first trip into the world the whole crew that I was with , like six people dosed on the train to the beach. I guess it was like five or six hits, and I think it's the first and only time I ever saw a real hallucination. I remember sitting on the beach and there was someone....sitting in front of me juggleing balls. I turned to the guy next to me ( who had accidently stumbled onto us on the beach and gotten dosed for the first time, waiting for it to hit) and i said " man there's fairies everywhere to entertain you and show you if you look for them." well, he looked at me and he asked " is that what you see?" Only recently did I look back and tell my boyfriend about it. I was the only one who saw anyone juggleing and since I haven't taken that much since them, that's what makes me think i'd go for it again. maybe that's just good acid tho??I don't know i'm just a toddler.