JonRook

I think the heavier cars thing is contributing a bit here. Modern pads probably are more aggressive, most contain metallic components...

Disc scoring is unavoidable regardless of pad formulation or disc materials. Discs have always shown circumferential scoring, long...

That sounds high to me, have you got the correct grade of oil in it? I just googled this and a v40 group have quiet a thread with it...

That’s awful and lucky could have wasted a lot of time in cleaning your tools and re preparing things !