EviLClouD wrote: ...brake pad paste is applied between the pads and anti rattle clips/pads the sound goes away. But after a month or so of driving, the sounds back.
Back of the pad, between it & the piston, or on the edge of the pad where it's putting the braking force into the caliper housing/bracket?
Besides that stuff, file the spot on the edge smooth, 90 degrees with a little radius.