DSC00445 Here's a good shot of my Port pivot bridle. You can't see it in the picture but the rope on the left is shorter than the the rope of the right. I had to keep remembering that the short rope on each bridle faces toward the bow. Once you install the pad eyes on the deck, there is no way to get your bridles even so that the rings come right with the pivot point of the mast. You really need to get your bridles made up first and get them even with the rings centered and at the right height, then you can mount the pad eyes. In theory, if you were to stand perpendicular to the mast with a plumb bob and try to mark the deck with the line going through the pivot point of the tabernacle, whatever measure you come up with from the shackle on the chainplate toggle should be the same measurement from that point on the deck to the pad eye. The centerline on my deck is 6" and my pad eye is mounted approximately 12" from my chainplate.