I saw that I should start the guide over if I used a different one before. I used a usbloader on 4.2u and had HBC and Bootmii as boot2 installed. However, I just updated to 4.3u last night. I have no intentions of changing my region. All I want to do is get any USB Loader to work. (I'm also open to installing Priiloaders if neccessary)
This brings me to my next question: since I don't need to start all over again, do I still need this "modpack" thing, or can I just install a certain thing and begin reusing my USBLoader of choice?
Sorry in advance if I failed to read any part that answers this, be it in guides, posts, etc.