When do you stop watering your plants? Also you realize it takes more than a couple of days to properly dry out your plants right?

Most people hang them for at least a week.

I would cut off your fans and just let your exhaust do all the work. your exhaust fan will exchange the air and provide some circulation alone.

Let them hang until your stems snap.. also it is worth mentioning that very large branches/stems may not get dry before the buds that sit on them are.

Your buds are also attached by another stem to these big branches.. cut them off these big branches, there is no need to wait for these larger stems to dry out if your buds have dried enough to be put into mason jars.

Remember we're harvesting buds, not branches/stalks.