The lower horizontal line in the photo above is the lower lifeline. This lower lifeline is a continuous line that runs from the a shackle on the upper shroud turnbuckle (shown in above photo -- said shackle is at the pivot point for my tabernacle rig and functions as the attachment point of the boom guys I use for my tabernacle) forward to a block on the bow pulpit, which is the forward terminus of the lower lifeline, and then through a through-bolted pad eye on the deck (which also functions as the forward attachment point for my jack line) and back up to the bow pulpit to a second block, which is the forward terminus of the upper lifeline. This same line after running thorough this second block becomes the upper lifeline. It runs aft through the pad eye in the pin rail shown in the photo above and then through the eyebolt (not in the above picture) further aft to a second eyebolt at deck level at the location of the boarding step near the forward part of the cockpit. This continuous line which is functioning as both upper and lower lifeline self adjusts through the blocks and pin rail mounted pad eye and eye, which function as fairleads when the rig is lowered for the tabernacle operation and then raised again. See the photo below for a view of the forward blocks and deck pad eyes.
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