Modgroups looks interesting as a convenience but I never really had any problems determining what did or didn't still need to be patched. Maybe it's just because of the scope of my mod, but I just went sequentially through every relevant category in every one of my masters. Existing patches were a good template for what needed to be patched - not perfect but good. I'm kind of working in the opposite direction of this modgroups method. I'm making the big patch first, then getting rid of all elements that rely on, say, EVE, and making a plugin out of that. If we're all careful enough, both ways should accomplish the same thing. I don't see an advantage one way or another, though maybe I had to do a bit more work by scratch. What kind of patches are you making Ghostwise? I hope we're not working on the same thing.