I was able to pick nearly a pint:
I decided to make a shrub. I did a lazy shrub- mashed the berries with sugar, added a bit of water, then apple cider vinegar. I put the jar into the fridge and shook it up periodically until all the sugar was dissolved. After three days I stained it through a jelly bag and put the liquid into a bottle.
The first drink I made was a bit of shrub, a bit of vodka, some club soda. I was tasty with a hint of vinegar taste and smell. The taste isn't so much a problem, for me it was the whiff of vinegar that came off the top of the drink- I couldn't help bit smell it with every sip.
From what I've read, the shrub mellows over time. I'll see how the shrub is after another week in the fridge.