University personnel and industry members collaborated to develop the newly pubished (today, 4/27/2020) UGA Extension Bulletin: Watson Training System for Bunch Wine Grapes. Here is a link to the publication:
Growers in GA and TX often train Pierce’s disease (PD)-tolerant bunch wine grape cultivars using the Watson System. The extension publication outlines considerations for the Watson System and compares/contrasts the Watson System with other popular training systems. Happy reading!