This is the first ’88 board I’ve done. I’ve been saving one for a rainy day because I knew the lighter colored barrel frame was made of a different plastic. Seems to have a much lower melting point than the others and my Dremel press at 2,000 RPM was too fast, resulting in a gunked up drill bit on every attempt. So, I drilled all the holes by hand – haven’t had to do that in a while!