I put it off for a few days. Yesterday, I finally called and asked about a couple of non-standard options for a B25.
One of the things I asked about was if it were possible to get a B25 with narrow string spacing. The staff member sounded optimistic, but ultimately put me on hold. Then he came back and asked if he could call me back later..........but I never got a call back!
It never occurred to me that this would even be an option - else I would have ordered it for both of my Bromberg fives, because I prefer 17mm string spacing.
I'm skeptical that Carvin would do something like this. Options that are primarily aesthetic in nature, i.e. custom finishes, custom materials, custom hardware, etc. are relatively easy to implement. But options that are, or would be primarily structural in nature, such as altering the string spacing, which could in turn require altering the width of the neck and/or fretboard itself, is on a different (i.e. fundamental) level of modification.
MM