Getting ready for drying/curing. Second grow almost complete

So i messed up my dry last time. Probably missed by a day or 2 (45%)

want to get it right this time.

I saw on here something about VPD drying.

What is the vpd range for drying?

Also,

I will be drying in a 3x3 tent. was hoping at least a weeks to dry. Very arid natural environment.

My experience the humidity is very high 1st couple days (obviously) then it dried out super fast.

I have a humidifier and a dehumidifier. Should I use both? The humidifier blows warm air into the tent but at worst would be 70F in the tent. But im guessing after a couple days the dehumidifier will be unnecessary.

My last dry was 7 days and it was too long. And that was full branches no trimming. By the time i got the humidifier in the tent it was 45%rh inside.

I can regulate everything with the spider farmer ggs controller. I guess the main question would be is the dehumidifier necessary at all in the beginning or will just opening the vents and running the clip fan be good enough?

can't help you on vpd, but try cold drying a branch and cold cureing it too, mne turned out wonderfull, i allways thaught long cold drying was bad for plants, how wrong i was