The building, and what it does to the job
Original walls are thick, lime-plastered and rarely straight, which makes dry-laying and scribing the bulk of the fitting day. Access through the property is usually the simplest of any archetype, with wide doors and generous rooms, so we can often carry a full-length piece straight in without a planned join. The slow parts are slow for a reason.
A stack boxed diagonally across a corner leaves a triangle of dead space, and the top is cut to that triangle rather than to a square return. Where the strip-out and the template happen on the same visit it gets measured properly, with the old top already off. The wall has not moved, and neither has the problem.
