Mustang
I applaud your workmanship and sense of responsibility.
More is generally better, but the NEC is a minimum standard and I do not believe that there is a minimum distance that unprotected conductors can transit (concealed or exposed) at a premises, cable or raceway. Obviously individual wiring methods will influence conditions of installation but they must be assessed for each case.
That being said it is a wise electrician that pays attention to the pucker factor.
Additionally local codes may influence such installations. In my jurisdiction the inspectors are limited in their interpretation of the Code. Local Codes although implied essentially do not exist.
We have a State board that adopts the NEC with amendments and local inspectors are sworn to follow these documents to best of their ability.
Keep up the good work
Charlie
