Used them for years and love them. Also keep them in my cello and guitar cases.
I wet manicure.
Three bucket bud wash, mostly to slow the dry because I was getting crispy bud too fast.
5-14 day hang dry in 45-60% rh as much as I can control it.
7-14 days in a cardboard box evening the remaining moisture
Harvest divided into 3 1-gallon mason jars with bovida packs,
burped at least twice a day for about two months.
My current bud was harvested in October and tastes as fresh and terpy as it it did at 2 months after chop. I'll probably be smoking this until at least April at which point I'll have another harvest in jars waiting.
I didn't use them for years, didn't run into dry weed until I started growing more than I could smoke from harvest to harvest then it would start to get dry over time. Now it doesn't. That's about it.
Don't like em, don't use them. I use 1 per jar and replace them when they get dry, crack or I change strains. I've had several last up to 3 years, living in jars.
in my instrument cases I have to replace them every 4-6 months, but that's a hell of a lot better than wetting a slow release sponge with water and keeping it with them like we did in college.