Attach to Component and COM

Hi.

I have a question about attaching actors with mass. When component is attached to another - their masses will combine, but it will cause problems with COM. One object can have mass greater than other, but because of mass blending engine ignore it.

Here’s simple illustration on this:

Green - Mass “A”
;Red - Mass “A” * 2
;Purple - COM

  • Frame 1: Structure is created from three actors with mass A. COM is set properly.
  • Frame 2: An actor with 2x mass of A is attached.
  • Frame 3: Engine combines masses, and sets COM wrong.

As you can see, COM is set not as it wanted to be set.
Is there any tricks to avoid this, and set COM before mass combining?

Thanks.

bump?
Should I?