I only have experience with wild american so far…
My sisters large mature trees in full sun location… and the fruit from them seem to loose astringency faster than the fruit from the other wild trees that i harvest from. The fruit from her trees is quite a bit larger… and the flavor is quite rich… which i can only describe as caramel like richness.
My son in law loves persimmons and we eat some together almost every evening. He was blown away by the taste of a nicely ripened chicago hardy fig… but he says my sisters persimmons are better then figs. I have to agree although it is a close match.
All of the other trees that i harvest from are smaller… younger trees… and in locations where they get much less direct sun.
The fruit on them is smaller, clear orange… since they get leas sun the fruit skin remains clear orange … and the pulp inside is clear orange… they have a wonderful persimmon flavor but lack that extra richness that my sisters persimmons have.
I suppose it could be sunshine on the fruit while ripening that gives them that extra richness ? Or perhaps it is just the larger more mature trees ?
The fruit from her trees looses astringency quickly… where the fruit from these smaller trees getting less sun keeps astringency longer.
The fruit from these smaller trees getting less sun… every once in a while i will pick one out and eat it… and be enjoying the flavor with no notice of astringency at all initially… but then wow it comes on near the end and ends up being quite astringent. It is almost like a delayed reaction.