2 liters? thats crazy people, ive been smoking every day for like 7 months and i cant even do a full 16 ouncer. i probly do like 12 ounces and its pretty decent, a full 16 ounce almost makes me sniffle a little. idk how u can do a 2 liter thats gotta FUCK you up... i wish i could, too bad id cough and puke lol. oh well they FUCK ME UP!!