Acadia is correct.  The .cr2 you saved to your FIgures library, with the DAZ V4.CR2, is still a V4..CR2.  If you let an other person handle it, then they could save a copy for themselves, and not need to buy V4.  

Actually even if you were to export morphs, of your work, DAZ could argue that the Delta data of the morph could be used to recreate a V4 figure.  This was a major reason behind DAZ's invention of INJ/REMs.

DAZ has a product for creating INJ/REM files, it's calle IPB(Injection Pose Builder.)  Stand alone it's like $30, but if you should sometime become a DAZ Platinum Club Member it's like $1.99.  The Platinum Club is $30 for one month, but I forget what the year membership is.  Once a member many good DAZ things are free, or $1.99.

DAZ had a %50 off sale a few months ago, after purchasing the Platinum Club Membership I got about $250 worth of stuf, for about $60(incuding the membership)

I was very sad when I realized copyrights work, but at least I came into the know whithout costing myself money..