WGASC Now! Is the official app for WGASC/MBOS - the Winter Guard Association of Southern California and Marching Band Open Series circuits. This exciting new application helps you keep up-to-date with all of the latest news, scores, and event information for WGASC and MBOS Events and Ensembles. With LIVE updates, directly from the WGASC/MBOS website. With the WGASC Now!