[greenskeeper805]

CC20 is the beta ROM that was leaked. It is not the original ROM. If you want to flash to any of the current ROMs, you'll need to do the update from Verizon/Samsung (the CF03 ROM). Most if not all of the current custom ROM's are based off of CF03. Once you update your phone to the official (CF03) ROM, you can flash to your hearts desire with a custom ROM. Doing a flash is the same as a hard reset in that everything gets cleared. I would use MS My Phone to backup your contacts, emails, and other info first. You will have to reinstall all of the third party applications. Sashimi will automatically reinstall, apply settings changes, and reg hacks but I wouldn't set it up just yet until you get comfy with 6.5. Google PPCPimBackup, it will also backup all of your contacts to your storage card or My Storage if you don't have a card. Let us know if you have any questions and don't forget to thank those that have helped! Have happy flashing!