Your ultimate goal for humidity "in the jar" is between 60F and 65F. I get mine as close as I can and then use Bovida 62 packs for the final adjustment.
If you are referring too the initial drying area humidity, you have a decision to make. It is desirable to dry the buds slowly, however if you dry them too slow, you risk mold which renders your buds worthless trash. I suggest you go with the recommendations in the article, but if you can't for some reason, go with lower humidity as opposed to higher. Just my 2c.