my non American ear when he says 'guys' thinks someone with a boston twang or even a new Yorker.I agree. Just like Delphi but a little more urban. Maybe a Delphi accent that has its high lilt "accents"subdued by living in a more monotone accent area.
I hear this:
RL says HEE- ILL
BG says HEEUL
But MOO BG says "hill" the same way just without the top note.
so a born&bred northerner imo
moo