Sorry Doc erm no, no one started scatter winding for a reason, other than expense, Gibson were using machines and Fender were using hand winders. In 1956 Fender employed Abigail Ybarra or Abby shes still winding today (suppose to be retired) and what a sweetheart, she is and personally hired by Leo. Her hand winds are worth a fortune. In 65 Fender moved to machine winding, and they dropped their winds from and average of 8000+ to about 7650 they switched from Formvar to Plain Enamel.

Even the most advanced coil winders need modification to wind elongated pickup bobbins. Oblong bobbins pull different lengths of wire during the phases of each rotation. This requires synchronized changes in tension during each rotation to avoid pressure points at the narrow ends of the bobbin. These pressure points can cause shorts in the coil which create eddy currents.

These Eddy currents or shorts are the only thing relevant in a pickup, besides good winding, its why i dip my bobbins in Poly U so the wire can never short on the poles.