Just an FYI re: clone vs. full mode.
Full disc, in its present state, is a far cry from the older Fab 2.xxx and 3.xxx applications, particularly with the introduction of PathPlayer technology and it's unique navigation features.

While I certainly don't take issue with opinions, when expressed as opinions, there are a few points of clarification:

The layer break, depending on how the full disc bkup is configured, can be preserved, although frequently it is not...again, this is a function of how the bkup is configured.

Anything not in the VIDEO_TS folder is lost (ie., DVD-ROM content)
Again, not necessarily...it is a function of how the bkup is configured.
For the present, the AUDIO_TS folder will be lost regardless, although this will be changing soon.

On a more personal note and strictly opinion, I love the Full Disc mode in it's current state. I used to dislike it and virtually never used it.
Now I can take a movie, bkup the entire contents or any bits and pieces I choose, and alter the playback order so that when I pop in the bkup, the movie starts...plain and simple...
no menus, no navigation, no FBI crap, no trailers, etc., etc.
If I choose to watch any specific special feature, etc., I just click on the menu and navigate the disc in normal fashion.
I love this...

Infrequently, Fab stumbles with disc structure issues. It's only happened 2X in all my full disc bkups and these were movies with alternate endings. Most flicks with alternate endings or beginnings did not demonstrate this problem.

I agree with Gummi:
I can't connect the dots here at all
Here are two screenshots. The first shows what I mean about copying DVD-ROM content and the second about the special navigation features and trimming of unwanted content, for eg., DTS audio

Both movie bkups, in my mind anyway, will produce no loss of quality whatsover. The content is digital and has not been compressed.