flowers of many colors

This is my only Satsuki with multi-colored flowers -- various shades of pink and some with deeply colored throats.

I have no idea what variety/cultivar it might be.

The flowers are much too large for this small tree (started from a cutting a few years ago), so I'm going to put it into a succession of larger pots and see if I live long enough to grow it into a size that the flowers are a bit more in proportion to.

If anyone has any suggestions as to the variety, please make them. I don't have Galle's book, but I've thumbed through Callaham and Kennedy comparing pictures (I no longer have the patience to read long gray pages of small print) and don'y find it, though "Kaho" in Kennedy is close.