Don't Panic! It sometimes takes a little while for Humi's to stabilize. For you Hydrometer, run a Salt Test, what this test does is tells you what your Hydrometer "true" reading at 70%, even digital hydrometers a just a tad off for accuracy.

Don't forget to season you Humi. The best way to do this is, wet down your Humi with Distilled Water and then take the soaked sponge put it in the middle of the Humi on a plastic bag assuring the sponge doesn’t touch the wood. Let this sit for at least 24 hours. Leave the lid closed the entire time. The reason you do this is because with large humi’s, the cedar is trying to soak in water. If you just put the Cigars in humi without seasoning it, the wood will try to soak in the water, so will all the cigars. This means your humidification device will not be able to put out enough humidity to keep the humidifier stabilized. That’s why you season it.

After seasoning, fill the humi with smokes, at lease 75% filled. Then leave Humi filled at 75% until the it stabilizes. For some humi's this can only take a few days for some a few months. They'll spike until the Cedar has soaked in all the water it can. My first humi took 3 months to stabilize however my second only took 24 hours.

Now I believe the quality of the humi will determine this. My first humi is only a 25 count and cost about $80. My second is a Specialized Humi that is “limited” costing $400 and only few are sent to Cigar Retailers. (Mine is a RyJ built for Altadis Cigars).

Both hold 60% perfectly and I have no problems keeping the humidity at that level.

Hope this helps a little.

Lopaka