Life lines are a contentious subject. They are LIFE lines, i.e. there to save your life, not to hang other things on.
I believe the correct way to set them up and the way I do it is to shackle the bow ends to the pulpit as in this pic,
then at the stern end secure them with pelican beaks as in pic below with a turn or two of duct tape over the sliding collar to prevent accidental release or with lashing line threaded through the eyes 3 or 4 times and tied off. This allows the life lines to be dropped quickly in the event of lifting a man back on board.
Before casting off all persons on board must be advised not to lean on the life lines as they may let go unexpectedly giving the offender a sudden dip in the ocean or at the very least invoke the wrath of the master upon themselves.
Note also the securement of the life buoy with slip knots on the lashings to allow rapid deployment. The mesh bag next to it contains a small drogue and bag of sea dye. Note also you can see the yellow dan bouy strobe light just below the life buoy.
Detailitus some might say but all designed to save life.
The life buoy on this side should have a 20m coil of floating line attached but I hadn't quite figured that one out at the time.