Thanks guys, I just wanted to prep my tubs while I waited for my damn rack to come in. Just trying to pass time. But I guess ill wait till it gets here so I can have accurate humidity scores to compare.

To the person trying to lower they humidity, try using a different substrate? If you using a machine to lower humidity also add a normal fan to take air out of the basement, basements are tough, have any cracks running along the floors or walls? Get a good concrete stain/sealant and paint the whole floor/walls with it, should help. Youve got all the ground moisture getting in there.