You guys with these "dry boats" must live in a desert.
My boat is keep in a pole barn with an open front w/o a cover. It's not uncommon, especially in the Spring and Fall to have condensation dripping off the inside/outside surfaces in the morning / evening. Putting any sort of cover over the boat only exasperates the problem.
What causes the condensation is the diff. of air temps.
Dry rack.....no thanks. They where popular until we had two or three boat-a-cues in as many years.My boat is used year round but kept 40'+ in the air on a dry rack inside a building. The huge doors are open during the day. Mo nold, no condensation. Best thing I ever did was buy the dry stack at the marina.