Reached 21 brix today and I harvested. Looks like this would be a good week to hang, but about half the berries have noble rot already. Smells great in the lug. I hope next year we skip that cold wet August thing.
I haven't measured yet, but they tasted more tart than the Marquette and were definitely more tart than they were a few weeks back. I let them hang longer to get sugar and I got tartness, go figure..will let you know.