how do you know it went through MLF?
The MLF happened spontaneously. There were the telltale signs of small bubbles rising in the carboy for about a month and a half.
I had made two 6 gallon batches of chokecherry wine about 2 weeks apart. The first batch I added k-meta soon after the fermentation was over. I did not add any k-meta to the second batch as quickly as the first and then I noticed all the bubbles, so I let it run through the MLF as this could be very good for a chokecherry wine.
Did you add Sorbate?
Yes. The original batch was 6 gallons. I bottled 4 gallons of that dry with k-meta only. Sorbate as well as k-meta were added to the other two gallons. Back-sweetened to a specific gravity of 1.019
I think I will just keep sampling a bottle from time to time to see if any strange taste develops.