I have had my 6-15qt or 3 28qt rack set up and plugged in for 4-5 days now. I have 15 qt tubs in the center shelf and 28 qt tubs in the top and bottom shelves to help minimize heat loss and do not yet have any BP's in it. I have a Helix DBS 1000 set to 98* with back heat. I am happy with my warm side, 90-93* measured with Accurite, but my cool side has been hovering around 83-84* degrees. We have not yet turned the A/C on because I know our current warm spell won't last, but wanted to know if this is too warm for the cool side. I can easily move the rack to the basement which stays cooler if need be, just want to make sure everything is perfect before adding a BP to the tub. My humidity is staying around 50%, but I have noticed that if I shift the water bowl towards the back of the tub, the humidity increases slightly, so I'm not too worried about that at the moment. Thanks in advance!