I'm currently waiting on my temp. gun to arrive, so I wanted to know how I can get accurate temperature using my thermostat/heat probe. I have a plastic bin set-up currently, really basic w/ newspaper for substrate. Sometimes the probe hovers a bit above the newspaper, and I'm worried that it won't read accurately this way... Is it okay for the probe to not always touch the newspaper?

Also, when I begin using coco-fiber substrate in a few weeks, where in the substrate will the probe then be placed? Should it be touching the glass, buried in the substrate, or on the surface of the substrate?
I really want to get everything perfect for my BP, so thank you for any input that you can provide!