I'm setting up my AP and they've pre-drilled a hole for the temp probe in the roof above the shelf. I've seen at least one thread where others have secured the probe to a wall using screwed in c-clamps, but does anyone leave their probe hanging? Is this a bad idea? Does it absolutely need to be secured to a wall? I know I shouldn't use tape inside the cage, but I could secure the wire outside of the enclosure.