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.