Human Manikin weight and CG

[marcofa]

I have to evaluate total weight and CG of device with man onboard, rotating around axis.
After creating man with right posture, the CG is shown by red dot.
To know his weight I do
-Right click on tree/Properties/Mechanics (foto 1) where weight is 4,239 Kg
-Measuring Inertia (foto 2) where head have 4,239 Kg, arm 0.997 Kg (foto 3), leg 2,467 Kg (foto 4). Seems that any body part have his weight that define CG (if I change posture CG position change)
If I insert this Manikin in metallic device having 100 Kg weight and I ask for total weight, I found 104,239 Kg; computation is metallic device + HEAD only and CG of this assembly is wrong.
-I apply weight in Anthropometry (foto 5)but total weight is again wrong (foto 6)

How can I do to have right weight computation and CG of an Assembly where a Manikin is inserted?
Why only Manikin head is taken in account for weight and CG?

Thank you for this very important help.
Marco

 

[marcofa]

Here the right attachment with pictures 1 to 6