I dont think I'll ever figure out how to get pictures in order . On day one I didn't see the temps changing in seed vault so I changed out the inkbird thermostat with a Vivosun thermostat ,the first temp was set at 70 but the paper towels felt cool so I uped the temp to 75 and got my inferred thermal reader it read 60-70s so I upped it again and a again until I was at 90degrees ,the paper towels read well you can see but the seeds told me I was doing the right thing they started popping tails . I think the boot trays are a little big for normal grows . For a ton of seeds like I'm doing they work great I would just make the seeds the same width and length of the heat pads, I think this would solve the different temps in the tray itself , I havent checked today but I think I'm going to be moving into root cubes today