What was the major gain in production flexibility offered by the card system for high-end fabrics?

Answer

Pattern switching took hours instead of weeks

Swapping a stack of pattern cards took a matter of hours, representing an exponential gain over the weeks it could take a skilled artisan to re-rig a complex mechanical loom.

What was the major gain in production flexibility offered by the card system for high-end fabrics?
inventortextileloompunch cardJacquard card