That is one amazing pear tree. I have planted and grown a lot of fruittrees. I have never grown a pear from one of my trees. Ever. I tried, believe me, over a period of 12 years I tried and tried. Nuttin. Them and Apricots.
You are to be commended! Green thumb or blind luck, you done really good.
LA Man-I do know that some pear trees have to be cross-pollinated with a different variety -oh shoot-I take that back, you need to check that out. I am no one to be offering advice on Pears.