I'm trying to add 3 patches to my spinnaker for half pole snuffing system for N6.0. I was trying to use the formula from http://www.guckinc.com/spinnaker_patches.htm but it does not work for me. When I divide luff length by 4 it comes up to be 95.5 inches but spinnaker foot is 228 inches. So when I swing the 95.5 inches radius arc from both the tack and clew those two arks do not intercept.

Here are dimensions for my spinnaker: luff 382, leach 321, foot 228 (inches).

Also, I want to add a bail to the mast. I found some people were using piece of rope attached to the 2 drilled holes in the luff groove. I was wondering if the bail from I20 would feet the N6.0 mast. How is the I20 bail mounted to the mast? Is it attached to the luff groove or to the mast with water tide rivets? What is the distance from the top or bottom of the mast where bail should be mounted?

I would appreciate any help
Thanx
Kris