I depend a lot on DiskWarrior. However, I tried to apply DW to the boot drive by opening the clone and running DW form there.(I am trying to avoid having to run DW from its disk.) However, that won't work! When one clones a boot drive, the clone shares some files with the clone. Therefore, DW tries and fails to unmount the boot drive thinking that it it must unmount the clone. To solve this I have created a bare boot volume on my system and moved DW in it. Now, I can run DW from the bare system without any conflicts.
MamaMoose