Yeah brotha, I would be a little worried about going up to 70% humidity too! I go 50 to 60% when drying in my tent! Just make sure not pile your buds to deep on top of one another, on the racks! Keep some light air flow moving around the tent and air exchange through the tent! Fresh air intake, humid air out through a carbon filter to control the smell! Way more control over drying my friend! You will notice the difference in your dried buds going into the cure, and you should get much better flavors and smells when drying slowly in high humidity, over a 10 day period or so! You will get it all figured out in a couple drying runs! Good Luck with it Lucas!
Nice looking setup man! I saw a recent Johnny B video either on youtube or insta and I think he said his 30 day hang was something like 80% humidity, you seen that one? I'm too nervous to grow or dry that damp though haha. I am deciding if it would be better to scrub the air in my dry tent than to just vent it out. Either way the tent setup looks good and should make a big difference!