I made sparkling cider with this juice. Half white grape cherry and half apple juice and sugar to get abv 12%
Then added more of the the wg cherry after ferment to knock the abv down to around 7%, kegged and carbonated.
It was great and went fast. Good luck on yours
I make a blackberry and black raspberry ports from berries picked in my yard and wild berries I find wherever I can. It is the most cost effective way to make something like that since a lot of fruit is needed and it can be expensive to buy 70-80lbs for a batch.
I also keep an eye on the store...