65% is perfect for me, if not too high for certain sticks in my opinions...I prefer them a little more dry than average...I just like the way they burn and taste better...
One of my desktops is at 67%...a little high for me but it is at a constant, never changes...
It didn't use to be like that, but I've had this particular humidor filled for at least a year, I had seasoned it, then kept it filled and the RH has just seemed to level off. I would use beads (you can buy them for 65% or 70% i believe), but I don't have any experience with these...
But for my other humidors, I use an Oasis, these are great but take up a little space, you pretty much "set and forget," the only thing I don't like is I don't have control over my Temp...but with Air etc.. it's not too much of a problem...
The good thing with the Oasis, is you set what RH you want it at, then it kicks on if it falls below the desired RH, then shuts off when it gets there.....