So in a previous thread, I talked about low tension in my rear wheel (Zipp 404 Clincher). My LBS looked at it again, and the torque seemed to hold up. Given the cost of the wheels, I asked him to send them to Zipp for a review. Zipp said that the torque was slightly above spec. Since a couple spokes had shown the effects of the chain-jump event, and since the wheel is in its first year, they completely re-spoked and rebuilt the wheel to factory spec at no charge since they considered it to be under warranty. I was very pleased and excited to hear about what they did of their own volition. The wheel should be back at my LBS today. Can't wait to try it out. A very good ending to this story.