Im kinda curious as to how humidity is at different elevations. I would assume it would change due to the density of the air....but that's just a thought.
Sometimes cigars are like fish... takes a bit for the new additions to acclimate and get all happy in its environment. What kind of humidor do you have? Is it all wood or is there a glass window?
Buy a digital hygrometer! The one that comes with the humidor is crap no matter where you bought it from! The one analog hygrometer I have reads up to 20% off off what the digital does. I've argued with guys that said well I got mine from holts...it doesn't matter analog is always a tricky one and digital is just better