I've gone through half that before, I need to read the rest. It's awesome info, kinda stresses me out when I read it bc my mind starts trying to figure out ways to better control vpd. Then I stop reading and start looking for materials to build a bigger tent with, lol. I don't know how to do this but I'm super excited to figure it out over the next few grows. I don't know how to control my humidity more precisely without maybe putting a dehumidifier inside the tent and setting it to the desired rh. But I have to build a bigger tent for that.