What is sad is that in my attempts to just get the darn thing to stay on there at all, I've been riding with the saddle in whatever position it is when I get the thing clamped on. Did the larger portion of a century last weekend with the nose so far down I was afraid I'd slip off the front onto the toptube - did the first part of yesterday's 45 with it still at an awful angle - I guess I'm not as particular about the positioning as I thought...

I had a two-bolt design on my Cannondale R1000, and I did not care for it. It seemed very tricky to get it positioned - as soon as I thought it was positioned properly, I would tighten it up and it would start to tilt either too far up or down. I thought I would be really happy with Campy's single bolt design, until all of this started happening.

You know, I might not have checked the positioning of the serrated grooves before I clamped it down, but it just started doing this after about 2,000 miles without ever touching it. Not sure why it would start to loosen up after all that time, but then again, I probably should have checked the tightness of the bolt occasionally.