I've found that the 70/70 rule is too warm and too humid. Almost all the cigars I've had burn issues with were higher than 65% humidity. I recently discovered because my wineador has solid bottom drawers that it was a lot more humid at the bottom than the top (63% on top, 70% on bottom) and had to move stuff around to fix it. The cigars I've smoked that were in the bottom the longest have had some burn issues, the ones that were in there shorter times and the ones from the top burned perfectly...