Telemark,
You still on your callery crusade up there?   Bought 2 onx87's to replace a home Depot bought bartlett and Kieffer.  Probably make 1 Kieffer and the other Olympic.  Bought an Olympic on onx87's  from mehrabyan in Ithaca NY last spring.    I pruned them to make a central leader, and they just puked shoots from below.  Seems the pruning shears pump the brakes on growth on pears.  Maybe I made them leader-less with my pruning.  Gotta leave one leader completely alone or something like that.