NICE! I just found out I had to do the same thing with Dimension Pro, because way back long ago, when I got a bunch of 3rd-party expansion packs for it, I had gone through a whole twisted path of moving the Dim Pro samples off the C: drive, and onto a secondary data drive. I ended up having multisample folders with differing sample sub-folders within them, and after this last Anderton Collection update, I could not find some of the samples for some of the presets, and couldn't find the presets (programs) for some other expansion packs where I had found their multisample folders.
So, you are not alone in somehow ending up with 'extra parts' or 'missing parts' for stuff.
Bob Bone