Whoa there Blaster, you snuck one by me for a little bit. Went back to do some more investigating and found your NAND section with it's Any Title Deleter built in there. I almost didn't catch that one. Very nice work. That will be a hell of a dol to boot into for recovery mode too. Once preloader or bootmi or csm or whatever is used is functioning correctly.
EDIT: I'm sure you've already tested thoroughly, but anyways....
1. Used Wad Installer Section to Install Mahjongg Channel, Tested Channel, Uninstalled Channel with Wad Installer Section.
2. Used Wad Installer Section to Install Mahjongg Channel, Tested Channel, Uninstalled Channel with NAND Title Deleter Section.
3. Used Wad Installer Section to Install Mahjongg Channel, Tested Channel.
All install/uninstall went cleanly with no leftovers causing errors. All worked correctly as expected.