It took approx two days for me to get my humidor up to snuff, and one thing to keep in mind is that you hygromometer(spl) could very welll be off as most of that style are off by some. So theres a test you can do with salt that will tell what humidity it shows when the test will always give i think 70%, i will try and find u a link, then you can adjust from there. But anyways get a cloth, soak with boiling water and wipe the entire inside down with it and leave for two days. I know its hard but you have to, this will help get the humidor set up and break in the wood (so they say) and help keep humidity proper.
Also getting a digital meter off ebay is always a good idea, and use the glycol solutions that keep it at 70% and open only when you need to open it up. Hope any of this helps, take care and let me know if it works.