Yes, the fruit ripened for me. I’m sure there was some drop, but I thought there was plenty of fruit that fully ripened on the tree for the size of the tree. There’s fruit again on one of the trees this year – I haven’t looked closely at the other one – but maybe not quite as much as last year, even though the tree has a grown a little more. A third Smith’s Best graft from 2016 that was reduced that first year to a fraction of an inch by a twig girdler has fruit on it this year that I fully expect to ripen.
My big disappoint in terms of kakis taking a long time to fruit is Saijo. I think every other kaki I’ve grafted has either fruited within 1-3 years after grafting, mostly 2 years. (So far that includes 20th century, Tam Kam, Wase Fuyu, Smith’s Best, Tecumseh, Pen, Nikita’s gift…) I grafted Saijo in two places in 2014, and neither tree has given me any fruit yet. One of them set a tiny number of fruits for its size (~4" diameter and maybe 18’ tall) this year, but I think they’ve all aborted. That makes Saijo about 4 years (and counting) slower to begin bearing than my other kakis.