I graft onto my pear tree at the same time I graft apples, and in the same way. I have 8 varieties on my Bartlett tree, and added two more this spring. The two added this spring have started and look really well. (Flemish Beauty and Clapp's)

In the first years of the Bartlett blooming (five years ago), I had to drive down country roads looking for a wild tree to pollinate the Bartlett. In 2011, our banner year of fruit production here in Michigan, I canned 30 quarts of Bartlett--still eating them now. The Harrow Delight has borne fruit for several years, and the Orcas had fruit in 2011. My other grafts are too young to bear yet--but maybe, next year! But no more scouring the neighborhood for blossoms to pollinate. And the bees love this tree.