I'm a bit of a Brooks fan; usual reasons. Recently I came to increase the tenson on my Swift (3-4 yrs old) and noticed the pin was bent. Got a replacement pin and, after some significant 'grunt', managed to replace it. Noticed my B17 Imperial (7 yrs old, poss older) on my commuter was making some creaking sounds and decided to take off the saddle and clean round the clamp. The rails had completely sheared and the clamp was keeping everything in place. Prior to using Brooks my saddles were usually replaced when the surface/padding starting to wear out, but the frame etc was always in good nick. Saddles take a lot of wear, but I'd have expected Brooks to have been pretty bullet-proof.
I could get the B17 repaired; does anyone have any experience with the Brooks repair service (cost effective?)?