Barrel makers are out front with each and every tube they sale. The next barrel could be a dude and if the wrong customer gets it, WOW it can do a lot of harm.
On 3 separate occasions I had an issue with a new barrel. In all of these cases the 3 different manufacturers addressed the problem to my satisfaction.
That kind of response seems pretty typical in this industry provided we approach the issue in a civil and rational way.
