Clark, I can probably grab in the month of November 150Kg of pears,. an average of 300g / Ud, The weight of pears makes the branches reach the ground, but in winter the podo, if I remember, I'll upload another picture with pruning pear tree.
All varieties that I have, is grafted on franco pear and quince B-29, the nashis are on Pyrus betulaefolia.
I already told you, that deer were a big problem, and if you can not fence the garden, probably will not stay another solution, the tree to grow up.
Regarding the second question, I think so Allan, I like the sweet and large fruit, and to get the size should be accompanied by proper pruning.
I will try to raise another variety I hope the forum rules permits.