hibernation
Lil-Rokslider
For what it's worth, I sent one back that kept showing impact shifts and they gave it a clean bill of health. Digging into some of their definitions was interesting. The way they define failures during their "impact testing" has nothing to do with zero retention, it's strictly about functionality.
If a scope goes through their impact/torture testing and physically functions properly at the end, meaning it's intact and the turrets still work, that's a pass. They don't evaluate or even look for changes in POI during the test, just pure functionality at the end.