Also of note. Once you have a custom rom you like installed. You wont need to really keep your backup of the stock rom. There are optional stock,pre-rooted and debloated roms available to replace it with. Just keep the original stock available until you get the right custom rom for you installed and working as expected. Once it is,back it up and then you can delete the original backup and pick one of the stock pre-rooted,etc type roms like JMZ's stock variant or one of the other sense variants.