Thanks, Boso...that's interesting, and worth considering. It would
be less work (not to mention money) to not
cover them, but I hesitate to take maintenance advice from somebody who makes money if I buy new ones. Kind of the "oil change guy says 3 months/3k miles but dealer says 5 months/5k miles" thing...one wants to sell you an oil change and the other wants to sell you a new car.
Low level of trust, I guess, especially now that my brand-new rig is back in for repairs for a second time since MDW.