Custom 420 Jib Cunningham from Sturgis Boat Works

	Dual Action 420 Jib Cunningham: This jib cunningham adjusts and self cleats from the cockpit of your 420 with only one hand. What's revolutionary about this design is that it adjusts and self cleats in both directions with a simple tug on the control lines and it can do this while under load. At the same time, it is extremely light, ads no hardware and can be added or removed with out any custom rope work. To tighten the cunningham, simply pull on the tan control line, to loosen, just pull on the red fleck control line. It's that simple.
Rigging Instructions:
	Step 1: Prepare your Jib Cut the lashing at the jib tack so that the tack can float free of the jib wire. For greatest adjustability you may also want to cut the lashing at the head and replace it with the jib as high on the wire as possible.
	Step 2: Remove the Forestay Remove the forestay pin. To reduce friction in the cunningham system you may want to use a 1.5mm piece of vectran to create a small loop at the base of the forestay.
	Step 3: Pass through the Bow Shackle Run the working end of the loop through the bow shackle.
	Step 4: Pass through the Tack Pass the working end of the loop through the tack.
	Step 5: Replace the Tack Pin Dead end the working end of the loop with the tack pin. If you've chosen to use vectran on the forestay make sure the pin also passes through that loop. If you choose to simply use the forestay as supplied, reattach it in the normal fashion.
	Step 6: Flip the Bow Shackle This will happen automatically when tension is applied to the cunningham system unless you have an exceptionally tight shackle
	Step 7: Dead End the System Use a Tech Knot to dead end the cunningham system to the shroud base. The system anchor line is the short, free end which does NOT have a barrel bead on it.
	Step 8: Contain the Control Lines Pass the barrel beads of the control lines through the shroud base. When you reattach the shroud adjuster, the barrel beads won't be able to pass back through, making them totally contained and thus, always at your finger tips.
	Step 9: Go Fast.

1) The cunningham control system is based around a Chinese finger trap style self-cleating system. It is modified to work in both directions with the addition of special releasing line (the "loosen" control) which relieves the pressure on the finger trap and pulls the control line through. The upside is that this allows you to adjust under load and conforms to class rules. The down side is that the finger trap always has to let the cunningham out slightly to seize the line in the trap. What this means in application is that you will always need to pull on "a little too much" cunningham so that the trap can ease back into the locking position at "just right". It takes just a bit of getting used to but, it can be done with one hand and very quickly.

2) For best control, especially when easing in light air, you need to minimize friction in the system. For best results, always spay the tack area (fittings, sail tack and cunningham line) liberally with McLube or similar lubricant. DO NOT spray the finger trap or any of the line around it, as it could cause the self-cleating system to fail.