Curing CAN increase potency. By curing you allow the plant to continue drying slowly which increases active-THC.

I'm unsure how much potency you gain in this way but there are also the obvious reason for curing. Smoke, Smell, and Taste....etc
thecurious1 Reviewed by thecurious1 on . TO CURE OR NOT TO CURE K THE GIRLS ARE NOW HANGING UPSIDE DOWN WITH A LIGHT FAN BLOWING IN THE AREA. AND IT IS COMPLETELY DARK, 75 DEGREES. WE PULLED THEM LAST NITE. HOW LONG SHOULD IT TAKE TO DRY PROPERLY. AND IS IT NECESSARY TO PUT THEM IN MASON JARS TO CURE. IF SO, CAN SOMEONE TELL ME HOW TO DO SO PROPERLY Rating: 5