I have a concerning problem relating to center of mass.  I'm creating a balancing jig so this is pretty important.  I inserted a "Center of Mass" feature for this purpose. Then I can snap to this point and design my balancing bracketry.  However, I happened to run "Mass Properties" afterwards, and found out that the center of mass calculated by it was almost 3 inches difference.  That's way too much for comfort. Anyone else notice this? Which one is correct?

Noticed this at the end of the day so haven't had time to investigate further. Just throwing this out as a warning!