My personal configuration and so on ... for Flsun Delta Super Racer
After a month of research, I - finally - discovered that my machine, with its factory "settings", was suffering from a serious belt tension problem: A = 61 Hz, B= 39 Hz, C=32 Hz !!! A message to all Klipper users looking for the ideal configuration: "Fix the mechanical or kinematic problems of your SR, before fixing your soft configuration!"