Notice:
The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.
As in everything, it's a matter of how much protection do you want. Ocean sailors want padeyes through bolted with ARC rated 80-g jacklines so the 50 foot breaking wave won't flush them out of the cockpit and off to a faraway continent.
Your desire to hank on at night is wise...I do the same. On the 250 I had webbing as can be seen on page 923 of the 2005 West Marine catalog with snaphooks, and I put them around the stanchions. They are through bolted, and you might bend them, but I doubt it, and you definitely won't break them in coastal sailing.
I ordered webbing with snaphooks from these folks:
I did this last year. Rather than use lines in the cockpit I through-bolted two large stainless padeyes, one for me and one for any crew standing watch. One is on the bulkhead under the companionway and the other is centered in the cockpit on the starboard bulkhead.
I used 5/16 braid for the jacklines along the cabin trunk, again using large through-bolted padeyes to secure the lines. The line has a 1200 lb breaking strength and is doubled per side. It needs to be strong to support your weight multiplied by the force of your body being thrown overboard. The padeyes are secured on the cockpit combing (sp?)and led along the cabin trunk to a large stainless eyebolt through-bolted to the foredeck just abaft the anchor locker. All the hardware has extra large washers backing the bolts. I used line instead of nylon webbing because I had it available.
As I write this I'm trying to visualize how I would get myself back into the boat while suspended from a jackline and tether, most likely while hanging over the life lines. The answer is, with great difficulty. It is probably prudent to drag two lengths of high-viz poly line behind the boat, as some of our members have recommended, in case you have to let go and ketch yourself behind the boat. Twenty-five feet seems to be the preferred length. A remote control for the autopilot would be a nice safety device. Attached to your lifejacket you could turn the autopilot off, or steer the boat into the wind, in the event you're in this situation.
Notice: The advice given on this site is based upon individual or quoted experience, yours may differ. The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.