Inevitably when you hire a craftsman (as opposed to a businessman) you are hiring an individual with individual talents worthy of your $$. This means they behave more like an artist, than like a businessman, because of their individuality vs pure-business-all-business approach. It may irritate the impatient, but this individuality and the quirks it carries on timing of projects, it really is what you pay for and why you go to the small craftsman shop. Be flexible and you will likely be very happy.Honestly I never trust stated lead times, even if they're "promised" in a conversation with an employee. I got some good advice from a guy who used to be a professional/sponsored shooter: "Take any lead time someone tells you and triple it. You'll never be disappointed that way."
I hope no one takes that as a dig at gunsmiths or barrel mfgs. I know there are a lot of good people in the industry working long hours and trying their best to keep the backlog as short as possible. Just...shit happens for them just like it does for the rest of us. Tooling breaks, they get sick, their kids get sick, the dog eats a golf ball and has to go to the vet, or whatever.
I saw this play out as an eager 18 yr old kid who dropped off a 351C block and heads to a locally respected machine shop. His rep, great work but don't hold your breath waiting on it.
Saw it play out 20 years later buying a custom steel mtn bike frame. It was ready when it was ready, not when he promised it would be ready.
You don't want the craftsman to drop his attention toward his craft, to be a "more predictable businessman" unless you want him to degrade his work. That's how I see it.