Relative Humidity Sweet Spot for Cigars?

[GVan]

~ 64% for everything.  All the current smoking rotation is in the same humidor -Cubans occupy the middle 3 shelves and NC's on the top shelf and bottom singles shelf.  The humidor has 4 small fans that circulate the air in a clockwise direction - 2 fans at the bottom blowing up and two fans in the opposite upper corner blowing down. 3 Govees and 3 western digital hygrometers monitoring and all calibrated. My guess is + / - one to two percent.  I keep the larger NC's at the top of the Humidor and I'm not sure if it's the larger boxes or just the NC's but the top is generally ~ 1% higher (I've switched hygrometers to ensure this is not a calibration issue).

At first, I kept all of the PuroDesnudo's and MOFOH's in the bottom singles drawer exposed to the air movement. Over the past several months, I've moved them to old, wooden Cuban boxes and I think they taste better. No scientific evidence to support any of my opinions but I think they just mature and evolve more slowly in the boxes. Unfortunately, I do not have a wooden box big enough for the Fat Fundies yet.