Despite what the guide says, you can keep the standard haxchi, if you're really sure it isn't cbhc. Unless you want to play the base ds title, which is rarely the case.
100% agreed with this ... I uninstalled CBHC and installed Haxchi back just so I can have a backup in the event that I can't launch Tiramisu via SD. Unlike other consoles that have modular SD cards that can easily be replaced, the Wiiu SD Card
slot is soldered directly to the Wiiu Motherboard. Replacing it would require a hard mod desolder/resolder.
If you think about it , with CBHC most people had the SysMenu as the default boot option, and so the SD card slot IMO would rarely get accessed if you were just using Wiiu with CFW.. Now with Tiramisu, we're all going to add a lot more wear & tear to the SD card
slot as it's required for every bootup.
With all of our aging WiiU consoles, as well as the added frequency of using the SD card slot now with Tiramisu , we're no doubt going to start seeing people's SD card slots not working anymore and realizing that there are no easy options available to get CFW back.
All of the current exploits requires that the SD card slot be used for initial exploit.
BlueBomb => launch.rpx from the root of your SD card
Indexiine / Tiramisu / CBHC/ HAXCHI requires a payload.elf on your SD card
Personally I would would recommend this:
If you have CBHC, uninstall it , reinstall regular Haxchi back and store it somewhere safe, and proceed to Install Tiramisu
If you have Haxchi, leave it alone, proceed to Install Tiramisu
Haxchi will not brick your console if you do a reformat.
Cheers!