> I guess the Flyweight model sort of briefly reemerged as the B-37 after WWII. That model was only made for a few years and had stainless steel rails that were, according to the knowledgeable, subject to breaking.
The problem was the aluminum cantle plate cracking and breaking after a lot of miles. I've seen the same thing happen to Idéale saddles with the aluminum cantle plates. Typical aluminum fatigue problem but only happens after _lots_ of miles!
Chuck Schmidt South Pasadena, Southern California