Could someone out there answer some questions please?  On the bill of materials, what are CT Red and Black Specials?  On the yeti 50 schematic, what are the connections on the turret board connected to at letter B and C?   Finally, does anyone have a way to make the V1 wiring of the terminal strips clearer?  I can't tell what is grounded and what isn't, like the left handed terminal strip is confusing to me?  Thanks in advance and forgive me if I can't respond immediately, I only get to view the internet about once daily d/t long work hours and minimal free home time.
JonB