Festool FS-WA Angle Stop

I’ve seen a lot of aftermarket track squares for some fairly high prices. Woodpeckers is the only brand I know of that also makes one that can be set to multiple angles, but at $140 more (or $250 more w/case), the Festool square is my pic. It may lack positive stops for the popular angles, but after setting an angle and then returning to the 90 degree mark, a machinist square verified the mark was accurate. It also has removable, adjustable posts that let you square up the track when don’t have a lot of material to the side to reference.