Yes. I didn't wipe anything. No problems, restored my nandroid afterward because stock is so drab."Keynote: When I restored using the tar myself, it did not remove data, so wipe beforehand as a necessary precaution."
To clarify this, what if I were to flash this with Odin over my current (stock TW, rooted) ROM? A few people in this thread seem to say that they haven't had a problem, but I'd like to verify that at the most all I will need is a backup - just in case.
My ROMs: Wicked X & Wicked S5 Xperience