Put a year's worth of heavy riding on a set of Ksyrium Elites. About 3 weeks ago I noticed a driveside spoke loosening. Took it to the LBS and they trued it. All fine until, now I have a non-driveside spoke loose. Now I know I should bite the bullet and learn how to true it myself. My question/theory is that could the driveside spoke work somehow have loosened the non-driveside. What I'm looking for here is a theory to use to go to the LBS and request a freebie true based on the fact that possibly it wasn't done right in the first place. For what it's worth, no pot holes were hit, although I hammered the hills at 190lbs. Thoughts?