Mark, the instructions that came with my humidor were pretty much the same as what you told me, except they said to use a shot glass instead of a bowl, and didn't specify an amount of time (I did it for about a week). I started re-calibrating my hygrometer last night around 11:00 pm. It's been stuck at 60% since about 7 this morning. I guess I'm going to have to go digital. For the amount of money I paid for this thing, I expected perfection.
Thanks for your help!