In Poser 6 and 7, there are these items within the cr2 called "controlProp GoalCenterOfMass" and "controlProp CenterOfMass".  I understand that this is used as an aid to achieve more balanced poses for the figure.  But when making clothing for the figure, is it neccessary to have these entries in the clothing cr2?  I have been deleting this entries when I make clothing, but I wonder if this is the correct thing to do.