Owner's Manual isn't much help.
Don't expect much from the owner's manual. It's pretty generic and isn't much help with anything. The parts manual is helpful. If I were you, I'd go to the C-30 International Association website and order the Tech Talk Collection (see link). It is an invaluable resource to any C-30 owner. It's published by an individual, Richard Dickens, who edited the Mainsheet's tech talk column for years. The Mainsheet is the quarterly publication of the C-30 Association.