Experimenting with pack and go assembly template, help please

I made a small subassembly to use as a template to beinserted into larger assemblies. This subassembly has parts thatare driven by the subassembly .sldasm file.

What i want to do is use this as a "template", pack and go with aprefix to a working design folder, where it will update based onchanges to the new prefixed subassembly geometry, and my originaltemplate will remain unchanged for repeated use.

Problem though, the copy with the prefixes, the parts don't updateto changes in the prefixed assembly. So it didn't accomplish what Iwanted.

I tried a workaround, I did a saveas copy of the .sldasm file tothe new folder and saved all the parts as references. But then Ihad to manually rename all the parts to add the prefixes, and thenpoint the assembly at the renamed parts individually. This way, theparts updated as I wanted, but it was a lot more work than Ibargained for.

Is there a better way to accomplish this? Am I missing something inthe pack and go maybe?SolidworksAssemblies