Bob,

I redid the cunningham so it runs between the mast bracket and the mast. The hook isn't attached to the sail in the picture below, but it demonstrates how the line is routed. The blocks with the purchase are located below the bracket with the other end anchored to the plate at the mast base where the boom kicker attaches.

[Linked Image from j30.us]

By the way - That's an actual display on the delivery back to Newport from Cedar Point after the 2009 NAs. Winds blowing 20-25 out of the North for a solid port tack reach the entire trip back. The TackTick displays are visible at the helm, and I can read the digits without my glasses. I have the GPS Bearing to Waypoint being transmitted over the TackTick wireless network in that photo.