If there is any wear then I think it is microscopic. I had a Green disk die after 45000 hours of spin time, over 1.5 million load cycles. I could not visually

If there is any wear then I think it is microscopic. I had a Green disk die after 45000 hours of spin time, over 1.5 million load cycles. I could not visually see any defects on the loading ramp with a 5x lens. I think the failure mode of this WD10EACS was one head started going bad.