Ghost:
The few I did were for an architect, and a kitchen designer, both were their private residences.
The designer did not want any cutouts in the backsplash whatsoever; some wildly expensive Italian tiles.
The architect, one from the wilder side, had a marble backsplash and the only penetrations were for his pot fill by the cooktop. His was field assembled with the 'Lumiline' lighting, receptacles and switches. A real backbreaker install.
Needless t say, my men, and myself do not make any cuts in any finish materials, so it was not my issue, just their preferences.
Both clients had no issues with pricing/costs.
