I actually grafted this just after the autumnal equinox, it looks like the graft is taking. It's been almost two years since I've done some grafting, that I remember.
This is from a selected seedling from known parentage. The tree has been producing for three years now. The fruit is large with lots of "meat" on it, no fiber, excellent taste, and when picked "mature green" exhibits a long shelf life. The size is comparable to Keitt.
One of our friends likes this mango better than the Kents she grows, and my wife really likes it (she is really picky with mangos).