The last two cigars I have smoked out of my humidor have burned quicker on the inside than the outside. One was a Padron thousand series that had been in my humidor for a few days, the other was a cigar that had been in my humidor for at least a month. I recently started using a new passive humidification system and the humidity has been 64-68, which is a little lower than it had been, at 67-70. The Padron had burn problems the whole time and might have just been poorly rolled. The other one leveled out mostly eventually. IT just bugs me that the last two have had burn problems. Suggestions?