>The Jetboil system, although heavier than most setups, is very efficient.
Sorry, I wasn't clear. I was referring to the JetBoil GCS 1.5L cooking pot, available separately for $50. I'm trying to decide whether the extra weight of this pot is worthwhile for use with my alcohol stoves. I have a JetBoil PCS already, but that pot is very narrow. I suppose I could run some tests of my RedBull Cobra stove on that pot v. a Snow Peak Trek 700 Ti, which is about the same size, to see if there is a noticeable difference in efficiency. I do like the JetBoil PCS; my rule-of-thumb for it is 2 cups, 2 minutes, 0.2 oz of fuel.