It seems widely acknowledged that Filson's brass zippers are hearty, yes, and beautiful, but they're so sharp that they easily scratch/pull delicate materials. I called Filson to ask about the zippers, and the rep I spoke to said they might get less sharp with time. He wasn't confident, though. I cut out the zipper from my 257 (now perfect!) but that's not an option for luggage. For those who have had their YKK-zippered Filson pieces for a few years - do the zippers ever get better/softer/worn-in, or are they always a fabric threat?