On Sat, 08 Feb 2014 20:20:42 +1100, Trent W. Buck wrote:

So last week I noticed I had (somehow) managed to shear through one of
the rails of my Brooks B67 saddle.

Somehow, Brooks keepp shipping the occassional(?) shoddy rails. I did two
in 88 ring up Cape York. Thankfully it was just a matter of having a
spare posted ahead to the next major location. Never had the problem
since.