I have on hand a 500CM with clearly duff mirror damper (just a very few bits clinging on - more in hope than expectation)

I'd like to run a couple of rolls through to test the general functioning of camera, lens and back, but I have a vague concern that this could damage mirror or mirror mechanism (or both) if the mirror is clattering back up without a soft landing.

Am I being overcautious?

(If I decide to keep the camera it'll go for a full service anyway)