Pears just do that and with 80 inches rain they'll be in over drive. I won't fertilize at all in that situation. You can try to train some of those out wider but that's not easy either and may give a much broader tree than you want.

My Euro pears took 7-8 years to bear. But they are only about 12 ft tall and have slowed down. I think I could shorten them now via summer pruning without severe regrowth.

There are advanced pruning techniques for pear that are beyond my grasp. Maybe harvestman will offer something more.

Just steer the growth with pinch pruning throughout the growing season, removing those shoots before they start shading the spurs. Summer pruning calms excessive vigor.

I never get that kind of growth here in southeastern NY but pears certainly can put on a lot of rank growth. Cutting back to 2-year wood also reduces vigor.

Is the basic framework of the trees already set? Are they the size you want them?

Rank upward growth can be used to extend existing branches by using the branch as a splint and taping (electric tape) interior water sprouts to near horizontal position where they reach out beyond the branch it is taped to.