Went a little off the deep end the past couple of days playing with a potentially silly idea for the diffraction felt we will put on either side of the kit speaker tweeters. Have no clue if it will work better, worse, or just the same as a strip of felt or shark's teeth shapes like most everyone else tries. Anyway, I like the look. After 9 hours working out a quadratic residue diffusor cell layout that would fit and function at the frequencies of interest and getting the shapes into the CAD software yesterday, the actual cutting of the pieces took just a few minutes. After a few hours of swearing at the laser cutter software today, that is. At least with my past CNC experience I knew that was coming. Will be comparing these against straight strips of similar felt tomorrow.