I hate to be the party pooper, but I should point out that even if you got a non-astringent hybrid, it could taste like a dud.
I tried a few pounds of different hybrids from persimmon collector Don Compton’s place. Ross and Kassandra were rather uninspiring to me (decent size though). I’ve had tastier D. Virg. Nikita’s Gift was stellar in comparison - rich, flavorful, good sweetness. NG is probably only hardy to zone 6b.
The original purpose to use D. Virg was to confer BOTH benefit of hardiness and flavor. If you only hit one objective, then you’ve still missed your goal. If you want non-astringent, you really need to hit all three for it to be a superior alternative to existing hybrids.