So I thought I could make it work, and like everyone else, I'm done with this thing.
I get fluctuations of 71-75% humidity. My end goal is to get a 'stable humidity' here.

Looking at heartfelt industries's site, I'm going to go with a the aluminum rectangular humidifier.

My question (and I've tried searching on this site, maybe not hard enough) - What makes the beads so much more stable than the conventional 50/50 solution + sponge? I've never understood 'technically' what makes them so much better. Will they really keep at a steady humidity?

Are there any drawbacks to getting the 65% humidity beads v.s. 70% ones? I'm probably going to go with the 65% ones.

Thanks for any input ...