Which kakis produce occasional male flowers?

General Fruit Growing
1

I’m wanting to isolate my pollination-constant varieties from the pollination-variant persimmons that I just started grafting this year. I figure if there are any varieties that occasionally produce male flowers I might as well put those with the PV types. So my question is which kakis produce occasional male flowers? I’ve heard Hana Fuyu is one. Which others? I’d like to know if you’ve personally seen or heard say that any varieties occasionally produce male flowers. I’d also like to know if you’ve grown and observed a variety long enough to feel confident that it doesn’t produce male flowers. I’m especially curious about any from the below list. Thanks!

Sheng
Saijo
20th century
Tamkam
Wase Fuyu
Pen
Smith’s best/Giboshi
Izu
Kyungsun Ban Si
Tecumseh
Rojo Brilliante
Honan Red
Inchon
Giombo
Taber129
Miss Kim
Patapsco
Niu Nai
Kawabata
Mazugata

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2

Taishu is a kaki that produces male flowers. I believe Cliff England has used it in some of his breeding work.

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