Originally Posted by bragi

You are a genius. Either that, or loosening and then tightening the tension on the saddle randomly fixed the problem. I'm going with genius. I did what you suggested (used WD 40, and included the bottom of the rivets) and then took the bike out and romped on the saddle up and down hills, in high gear and in low. No creaking at all. My attitude about the B-17 is suddenly much more positive, because it's still really comfortable, it's still not waterproof, but it's quiet again. (2 out of 3 is pretty good) Thanks!

I'm kind of intrigued about the Cambium C-17, though. If I could get a quiet saddle that's as comfortable as the B-17, but is also waterproof, I'd be happy. I know it's a minor thing, but having to worry about a weather-sensitive piece of equipment in a place where it rains 100+ days a year is kind of a pain in the a**.