Steve, I had the same problem with robustos and torps last summer. Kept smokes at 70-71%. Dropped it down to 66-67%, waited about a week to smoke any of them; haven't had the problem since. Occasionally I do have the problem with sticks that have been in my Road Warrior traveldor for three-four days on a long trip. I think the higher humidity in the traveldor causes it. Hope this helps.