hello,
when you make a shrinkwrap of an assembly the physical properties are the same of the original assy.
I know that this is good because, when using the shrinkwrapped substitute in a main assy, the right mass is needed for a correct total weight.
in same cases, instead, expecially when computing the external area to paint it would be much more useful to have the physical properties of the semplified part as an option. (i.e.: a frame with tubolar profiles).
something similar to wath happen with the LOD where you are asked for total mass or LOD mass.
actually I shrinkwrap the frame than export to step then I obtain only the external area.
thank you