That's the exact test I'm describing and yes that's the motion. In my wife's case you could see and hear a definite thump when the rubber bushing bottoms out.

I don't know how much this stretch with a new bushing so there I'm sure it's some motion but you won't feel that "thump" when it hits a limit

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)