I am growing the same one, it's second year here and it is producing fruit. (we have 6 different eating grapes) No idea on the skins, I am just trying to keep them from the birds, including my chickens! No yellow jackets on them, so far. We are just eating them off the vine right now, maybe we'll wait to see if they get any sweeter before cutting them all off.
I see that
@KentPfeiffer is also growing this one, maybe he can add more info.
to NGA!