[Shakattack]

Is 71° and 55% relative humidity OK for drying in the first few days whole plant hung upside down

 

[Redneckx]

60°f and 60% Rh is a common method which works good.
Airflow is necessary but not too much and never directly on the plant, if y got a fan inside not a clip fan then point it against corner.
When the plant dries too fast the plant will get a hay smell, try to stay on those numbers.

 

[greengrower73]

Is 71° and 55% relative humidity OK for drying in the first few days whole plant hung upside down

Drying too fast is just a fact of life some places. I can't have family living in 60f temps so I built a sm box with a small transmission radiator and a controllable fan behind it. I run cooling lines from my chiller ( OR a water filled bucket I drop ice into when there chiller is in use ) through the radiator lines giving me an insulated 3x3x3 cool box. I can keep the rh low with Dehues in my lung room/basement. Its an inexpensive drying hack much cheaper than a Canatrol.