Humidity levels

Now, I've already had one ok grow...it was my first and it was seedy, didn't take the males out in time. But I'm wondering, I keep the humidity at about 15% all the time, and give the 5 gallon bucket a gallon of water every 3 days...now I do know that if you keep the humidity down when flowering it'll increase your little mushroom heads on the leaves and shit, it's like a sun screen the plant makes. It's growing very well and looks healthy....so.......does it really matter about the humidity???