In my experience choke cherries vary a lot from tree to tree. Yours might just have more tannin to them the yoop's. But for me a 'bitter wild taste' is what I want/look for in a choke cherry wine.
Planning:Choke cherry wine, brown ale.
Bulk Aging: Oud bruin with elderberries, Brett Saison, ordinary bitter.
Bottled: Oud Bruin, cider, black raspberry mead, Elderberry wine.