creo6 config.pro option documentation for: ENABLE_ABSOLUTE_ACCURACY

enable_absolute_accuracy
yes
, no
*
Generally, if set to yes
, enables you to switch from relative to absolute accuracy for a part or assembly.
In Mold Design and Casting, additionally, setting this option to yes
helps you maintain uniform accuracy for the reference model, the workpiece (die block), and the mold or cast assembly. At the time you add the first reference model to the mold or cast assembly, the system will inform you if a discrepancy exists between the assembly model accuracy and the reference model accuracy. You can then accept or reject setting the assembly model accuracy to equal the reference model accuracy. If you create the workpiece or die block in Mold or Cast mode, its accuracy is automatically the same as the accuracy of the assembly model.
It is strongly recommended that you set this option to yes
when working in Mold Design or Casting.