Has anyone ever had an annoying creaking coming from their saddle? At first I thought it was my bottom bracket because it was a very rhythmic clicking and stopped when I stopped pedaling. I got a BB service. However, I had also changed seats at the time. Needless to say, the clicking went away...for awhile. It came back just before the Livestrong Philly Challenge. Had BB serviced again, but also changed to my racing seat for the event. Clicking was better for a bit, but it's back. The sound is coming from right below me, which is also why I thought it would be BB. This would make three different seats doing the clicking, but I am around 215 so I wouldn't rule out stress in the saddle rails. Should I worry about seat failure? Is this common?