As usual, Franco, we're not that far apart - I was looking for the anecdotal info to help inform my decision on whether the NeoAir should even be considered; I'd already decided to carry a thin CCF pad, too, with whichever pad I chose. (I'd already done the math on the R factors - same logic as yours.) Naturally, I'd like to save the weight by using the NeoAir - but based only on OM's anecdotal evidence, the CCF wouldn't have made enough difference. With the additional input, I might yet take a chance with it. Like I said, a very specific question with a very special, limited-purpose motive.

I also agree with you about averages. Another hiker once told me (on a particularly strenuous day) "for every uphill there's a downhill, but on the average trails are level - too bad mountains don't know how to do averages."