I did the salt test. I just checked it and it was at about 68. So there's a difference of 7%...If I did everything correct which I am pretty sure I did.
I was going to order a 1/2oz. tube of the beads, but I was in my local cigar shop today and found a HumidiTube(70%) so I picked one up.

Anyone ever used a HumidiTube? And how well did it work?