Interesting, Will. It looks like GEC was experimenting with HME at the same time that Acrylic was in full swing. I wonder if there was something about HME -- toughness? durability? -- that made it of interest to GEC. My guess is that, at the end of the day, the process of making HME covers may have been more labor intensive from a production standpoint, particularly compared to acrylic? Would love to learn more about this. From the standpoint of looks and feel, the HME Camo is really quite something.