My understanding was that Vicky comes out of the box with every DAZ morph, including Girl 4, Aiko 4, and Stephanie 4, but they aren't visible until "installed." Once installed, removing them with the REM file doesn't actually remove them, they are just made invisible again.

As an experiment I stripped out all the unneeded morphs (including hundreds of invisible ones for A4, G4 and S4). V4's file size shrunk in half, from 67 MB to 34 MB.

But I'll also try what you suggest, though it sounds tedious injecting one morph at a time.