Basebands Idea: I have a concept of high ardam, When it gets to four dots maybe you try putting dots on top and under? Another great alternate is to try using a little line instead of a DOT that should be about two times longer than the DOT
My Idea: So basically, every group of 20 is a new number, but 60 is 0..+0. so every 20 makes it different, just see, idk how to explain 140-200 made by @Victor_29-