first cherimoya fruitlet ever, after years of no fruit set

You may have heard that cherimoyas require hand-pollination, as they are only naturally pollinated by some beetle that clearly does not exist in my greenhouse in Pennsylvania. Not only do they require hand pollination, but the flowers and pollen are only viable for half a day or so. I am pretty lazy and only half-ass pollinate when I happen to be out there, so for three years I have had hundreds of flowers but no fruit. For the first time this year my 'El Bumpo' has a fruitlet, it is about the size of my thumb now. I hope it holds, and it better taste AMAZING or I am digging it up and replacing with my Geffner atemoya that sets fruit just fine on its own.