ZVB on Sprints website is in keeping with consistency since the last update was ZVA.
ZVC is ZVB for LG is the internal testing version, so basically, this is LG's ZVC renamed to ZVB.
Got it, good. I hope I didn't confuse you, but that's the understanding behind it.
Still waiting on LG to change it's status thus far no change. Once that happens, HELLO KIT KAT!
I think at least 2 people on XDA reported that their phone is now in a boot loop after trying to install the update, so you may want to hold off installing until more people have reported back (I myself have not installed it yet).
I updated via adb, just push it 3 times, if you try to reboot after first push it will loop. On third push, text saying after the "installing update" stage, "Removing unnecessary files" and then "Patching system files" then "Unpacking new files" "Unpacking new recovery" "Renaming files" "Symlinks and permissions" "Patching remaining system files" then the text reads "script succeeded: result was [/system]" then finally "install from ADB complete." then select "Reboot system now." You now have ZVC KitKat installed.