I live in SC and right now temps are cold at night and warm during the day. We don't use HVAC much this time of year. But the humidity here is higher. So our house fluctuates a lot. If I start my NR360 with water in the center the humidity will stay at about 57. If I do dry it fluctuates a lot but stays a bit lower. If you start with water but decide it's too high so let the water run dry is that worse than leaving it higher but stable? I feel like my hatch rates were better putting water in the center even if it stayed 50-57 than when I did a dry hatch. But I'm not sure if it was the lower humidity on the dry hatch or just the fact that running a dry hatch here fluctuates so much.