[CAN OF WORMS]
I had a Brooks B-17 for a little less than a month. It got wet at the start of a 100-mile gravel race and by the end had deformed into a mishapen ass-hatchet that was unrideable. And yes, I had used proofhide.
It's been a $130 waste of space in my parts bin ever since.
[/CAN OF WORMS]