So... I have a sticky situation here... I won't go into the frustrating details of why.

I know that Autodesk AutoCAD file format has not changed like it typically does every 3rd release... In 2016 it is still AutoCAD 2013 format... this is welcome news.

I would assume CADmep 2015 files can be opened in CADmep 2016 as usually is the case with Autodesk software. But can 2016 files be opened in 2015? 

What are the pros and cons of attempting this?

Also, I am very band-new to CADmep so please go easy on me. Added on to possible differing version issues, If CADmep objects were created in a system where ALL the 'config' files exist, (e.i. ITM files, System Definitions, Pipe and Material Specs, etc.). What might I expect to see If the dwgs are opened on a computer where NONE of this resides?