I live in Philly and swear I dont see l;abel chanegd til later.
Like Mountain Dew Code Red and livewire
now code red I saw the new logo 2 months ago for a ocntest, but now its bottles of the old logo again, never saw it for livewire.

PHOENIX!

I *JUST* started finding Pitch Black 12 packs EVERYWHERE

A lot of things could be affecting the labels you are seeing. Sometimes bottling plants have more labels and packaging than they need. This creates an excess inventory that must be used before changing over.
Also, Some Bottlers go to market differently than others. If I remember correctly, NY has independent reps as opposed to say the bottler (Pepsi) in Denver that is part of the PBG unit.
The reps could have stock that is old and not rotated correctly which will mean old labels.
my .02 cents

we still have code red/ dt code red/ livewire/ and cf dew in the old logo - got cf dt dew about a month ago - the bottle must have alot of inventory of the old logos