I'm thinking about getting a 1/2 pound of beads from Heartfelt and was wondering what most folks use. Since I will someday be upgrading to a cooler (down I go...), I was thinking 70%. They're not as air-tight as my humis. I usually keep my humidity at 65-70% in my humis, but I didn't want to go with the 65% beads if they couldn't keep give me a constant 65%. I know lower is always better. All thoughts welcome.