There has been a lot posted on Humidity. I understand the standard should be 50-55% for setting, 70% for lock down. I have also read quite a bit regarding "dry" incubation, and while I understand the theory, it seems more about controlling the ambient RH outside the incubator, and then not adding water (or adding very small amounts) to the incubator. So you are still controlling humidity, just in a different way. I've heard the hatch rates with so called dry incubation and would love to try it but there is a problem. Here is my situation, I am incubating in my basement, in the dead of winter. I bought an expensive Thermo Fisher Temp/RH unit to measure the ambient air. While a basement is usually the best place to incubate due to the very steady temperatures it is cold with low humidity in the winter, and cool with higher humidity in the summer. The temperature is rock steady, between 49-50 degrees all the time which has been great for my HB 1583 (temps extremely steady 99.5-100 F), but the ambient RH is only at 40%. While 40% for 75-80 degree air temps would be fine for dry incubation, my Hygrometer in the incubator without water in the tray is reading very low 20-25%. I guess this makes sense as 40% RH at 50 deg would be significantly less RH at 100 deg. With the middle tray full I am reading 40% RH, is this enough? I am going to assume it is, but am concerned during lockdown if I am going to get enough humidity with both trays due to the low outside RH.