Slow speed, like driving over edge of driveway, ramped area into parking lot, uneven pavement. In "normal" sound management mode its prob easier to hear it.
When it start going, good shake can replicate the noise. Damping still works, feel like top seal / bearing failure on the shock body. I didn't get chance to inspect other one, i'll ask again to check out bad part - if I remember to ask them to save it. They did say NO to me keeping the bad part.. maybe second one i can keep ?