I don't use the MB jack, but as a rule of practice, I do not use jack stands to back up the jack - I do the reverse. I.e. I lower the vehicle onto the stands and verify it is secure, then use the floor jack positioned to backup a failed stand wherever I might be under the vehicle.

Steve

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'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7