Won’t these settings cancel one another out? Why not maybe try Mask 10, CRT Mask Size 1, Mask Zoom - 0, Slot Mask Width - Auto and set the Slot Mask Height based on how it looks when you go close to the screen?
Also, let’s say they don’t cancel one another out, how do the triads look? Are they still RGB and properly aligned with the subpixels of the display?