I'd do more than just pick at that smith a little bit. If he doesn't know how useless it is to spec twists finer than whole inch units, I doubt I'd let him touch my rifles.
There's a short list of questions I encourage folks to ask their 'smith before they fit a barrel the very best way possible for maximum accuracy. If the 'smith gives bad answers, I'm outta his shop. I'll email them to you if you want. Won't post 'em here where 'smiths will learn what the correct answer is so they won't scam customers.
Bart B, I know this is an old post but if you read this please send this info to my pm or email from my signature info.