but doing some research i came across this:

"Neither the �Hachiya� nor the �Fuyu� needs cross pollination, which means that the tree will produce fruit without another persimmon tree nearby. In fact, cross pollination can be a problem if the �Hachiya� and �Fuyu� are planted within one-half mile of each other. If a �Fuyu� is close to another variety producing male flowers, some of the �Fuyu� fruit will be seedy. If a �Hachiya� is pollinated from another variety, black areas will appear in the flesh and the fruit will have seeds."

source: http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=11611

anyone else have any experience?

If you are going to plant self pollinating use only self pollinating of the same hybrid type.

If you aren't using self pollinating then you will need different types to cross pollinate. In this case, people usually pick a type of persimmon because they like it's taste and so a similar tasting persimmon that ripens earlier or later than your favorite as the cross pollinator makes sense.

In my case I was recommended, if I remember right, a Yates or a Prok, by this nursery:

http://www.nolinnursery.com/Persimon.htm

He is a Ag graduate from UK with many years of experience.

So if I was like you I and wanted two trees I'd buy 2 Yates or 2 Proks. You should buy 1 or 2 or the same variety if they are self pollinating. I'm only buying one so I don't have that problem.

I have a Black Gum (aka Black Tupelo) in my yard already and it's you've seen one you know they are closely related to persimmons. I'm not sure it they can 'cross pollinate' persimmons like donkeys & horse can cross breed though.