Please excuse my ignorance....I have Deore on my bike, just as your wife does. May I ask, why are you tuning her bike EVERY ride? Am I not doing something I should?

Granted, my bike has not a problem shifting yet, but, is there a base for how often it is to be tuned? I brought in to my LBS for it's first adjustment (after purchase) and he said it was okay and didn't need to tune it. But should I now? Or soon?..............