Ok got to try make this short lol. After 12 hrs in the bag the acurite, as expected, showed 71% which is 4 low. I calibrated to 75 and put it outside in the light fog at the time. My main station was showing 98% the acurite went up slowly to 98 and stayed there for some time before going to 99. Looks pretty good. Now i put the acurite in unused room and let it settle in to 62% and steady and put the 3 old 31 and the new 31 and let them settle in. One read 1% low, two of them read 3% high and one was right on. So i took the one that was showing 1 low and bagged it for a while and it showed to be 73.7% which is right at 1 low and right now is showing 61% next to acurite which still shows 62%. I bagged the one right on an it showed 75.3% and it shows the same as the acurite. I have not check the two that have 3% high but probably will check one though it sure looks like they will be high on the bag test. 3% high is not within specs.