I'm toying with the idea of adding a self-tacking jib to my P19MX, and I like the Hobie self-tacking hardware I've seen. If you're using the Hobie parts, do you have any idea what the radius of the jib track is?
The radius should be roughly the radius from the self tacker straight to the forestay in the same line the sheeting angle would be done. You want to be slightly flatter than this radius and definitely not MORE than this radius (if it is more, the jib would be tighter in the middle of the self tacker and wouldn't "self tack" with sheet pressure on.)