#amass in moses

Hi, everyone:

In the moses manual ,the #amass is explained as above.  for the parameter DISP, it says that the added mass will be DISP/G.

when the analysis is under a SI unit ,  the added mass has a unit as MTON, so the DISP's unit  in the #amass should be MTON*G ??

For  example, if i has a launch barge whose amass is 5000mt. Should i type the commond as follows:

#amass   *pt   5000*9.8   cx   cy   cz   rx  ry  rz

thanks for your reply!