Nope. I followed Reinz install method to a T. Got the bigger sets of mirror mounting brackets from Lowes and screwed them in place with 3/4" countersink #8 screws. They probably go about 5/16" of the way into the cage ceiling. I just placed the hide where I wanted it, and then screwed in the mounts for two out of three sides. The third side I made sure was fairly snug against the hide so it won't slide out too easily. I can still slide it in and out without any issue but it's snug enough that it won't be easily bumped out of the brackets. I am prepared to use a stop screw at the front of the hide in the event that Phyllis manages to move it forward at all. Leaving it secured on 3 out of 4 sides for the time being just so I can take it out easily if necessary.