I am not going to do the complete upgrade to the vang yet. I am going to start with a simple upgrade with the old cleat block and boom block and the addition of two 20mm blocks. I am going to do a full upgrade on the outhaul (6:1) and cunningham (6:1) using Harken 16mm blocks and the Harken Extreme Angle Cams.
Please comment if anything that I list below doesn't sound right.
Here are the lines I am planning to use:
Vang: 6 meters (19.5 feet) of 3/16" (5mm) NewSwift
Outhaul: (rigging diagrams here)
Primary: 1.7 meters (5.5 feet) of 1/8" (3mm) Vectrus12
Secondary: 4.8 meters (15.75 feet) of 3/16" (5mm) Yale Lite
Gooseneck Line: .62 meters (2 feet) of 5/32" (4mm) Vectrus12
Shockcord: 1 meter (5.5 feet) of 1/4" (6mm) StretchCord
I also plan to use the Rooster Clew Strap and a clew hook.
Cunningham: (rigging diagrams here)
Primary: 1 meter (3.3 feet) of 1/8" (3mm) Vectrus12
Secondary: 4 meters (13 feet) of 3/16" (5mm) Yale Lite
To attach the various small blocks I am going to splice them onto the ends of the lines to keep everything looking clean. Rooster Sailing has some good directions.