I am now working on a font family. I have two masters - Light and Ultra Bold and I will make 10 more instances to have 12 fonts in my family . I made same spacing for both of my masters (Light and Ultra Bold have “=” in RSB and LSB). While in Light the spacing looks great, in Bold it doesn’t look nice at all. I can adjust spacing only in Bold to make this very master looks nice, but I don’t understand how different spacing in my initial masters will affect other instances in between these two masters. How the Glyphs app count the proper LSB and RSB in other instances? Is it going to proportionally interpolate in between two values of RSB and LFB for each instance?