actually unless you have precious lenses that you know you wont use often but still wanna keep it, a dry cabi is redundant.
even in singapore humidity, unless you use your camera less than 3 times a year, fungus will not grow.
now my dry cabi is used to keep stuff i pick up from my travels (funny looking fossils, skulls, bones... etc..) with only 1 old lens in it. everything else is in camera bags. it's been like this for about 5 years and no fungus.
I am learning and gaining some confident, from you.
Perhaps, sometime it was because of the long storage in the Dry Box that make the camera and lens rubber sticky?
Look like the right thing to do is, to at least take out the equipments for an outing once a month. Thanks.