Ya the double carb one is a little more for looks than function... dont get me wrong it smokes great but its kinda like playin a flute. You have to pack both bowls and light both i have a double barrel shotgun lighter with two flames it works perfect. You hold both carbs and release them at the same time and its a man sized hit!!!! I smoke more out of the bong thou. It has an ice catch and it really makes it easy on the lungs.