Hi ray07101 ... I'm back from a short trip away.
I had a quick look at the movie. There does seem to be a nanosecond of the bass G before the open string G, but yes, basically I'm picking them in unison.
Looking at the C chord, I guess there is a bit of a spread in the live playing. allthumbs is right about the tab indicating that they're plucked as a unit, but I do sort of roll each note out in the movie. They're very close together in the time line, but they're not plucked as a unit. I guess I should look into figuring out how to tab that technique out in
GuitarPro.