So I have decided I like the widow side panel thing so much I am going to try an experiment mod. What I want to do is make a whole side panel on my CM sniper case clear. What I am planing on using is a Sheet of Plexiglas 21 1/8 x 17 5/8 size and 3/16th thick. My only questions are... 1. Is there a material more scratch resistant then Plexiglas for this? 2. How to mount it on the side of the case. (For right now I was thinking black Velcro. Or drilling wholes for Thumb Screws) 3. Best way to polish the edges of the window.