all i can say is that iv mixed 2ci with pure mdma,it was the best combo iv ever done,(150mgs of mdma,and 28mgs of 2ci),the thread starter said a 2ci dose is 10mgs i dont know if i really agree with that at all ,but then again im more of a hard head than most people.one really kool combo i did was a "tripple stacked" e pill (pink dolphin),and 17 grams of perovian torch powder (low dose,i know,but it was my first time doin mescaline,and IT WAS THE SAMPLE ,so whatevs)i belive this is called a "cactus flip",it was just weird because it was the dirtyest "extacy" iv ever had and mixed it with a high i had yet to understand,the best combo in my opinion ,but also fucks with my head by far the most,would have to be a "hippie flip",the most iv ever took is 2.5 grams of shrooms,and 3 e bombs consisting of 2 blue okleys ,and 1 pink playboy (it was fucked because i took 2 different kinds of extacy,sniffed and swallowed and parachuted!!!!!!!!!!!!!!COMBOS DOMINATE BUT U HAVE TO KNOW UR LIMITS.