Hey, Ender 3 Pro user here, and I wanted to give a few tips. First of all enable z-hop. I had maybe 5 failed prints, where it went really well only to have a few links knocked out of the way. Enabled z-hop, and it looks great. Minus the minimal amount of stringing near the bottom layers only. I also have a smaller waist, and if anyone was wondering it is possible to shorten the belt by going into you C.A.D of choice ( I used Rhino 3D) And removing a few links. My settings: .2mm layer height. 60mmps speeds, no rafts, skirts, or borders. I used pla. Give it a shot.