Club gilets, printed-and-embroidered work coats and team softshells often carry a full back, and a design that size behaves nothing like a chest logo. Each block of stitching pulls the cloth under the areas still waiting to be sewn.
Stitch a 350mm crest in artwork order and the error adds up: outlines no longer sit on their fills, arched text flattens, and the final colour is visibly out of register.
Stitch counts climb fast on backs, so running order also decides what the job costs in machine time. Every file comes with a stitch count and run time, and the free stitch estimator gives you a pre-quote figure.
A back that starts crisp and finishes out of line was stitched in artwork order rather than sequenced for the fabric.