Abbreviated Jack Lines - I concur
I start my Jack lines about mid-cockpit level, and run to just behind the bow. We have 3 padeyes to clip into in the cockpit, and can reach the jack lines from inside the cockpit (this is essential). I can also pee from the stern from the padeye - but just barely (my preference). I have no reason to be walking along the deck in rough weather aft of the front edge of the cockpit, since I can reach the rail easily from the cockpit. In a larger boat, however, the jacklines may need to extend farther back. There may be advantages to longer jack lines, but these work for my needs.
I start my Jack lines about mid-cockpit level, and run to just behind the bow. We have 3 padeyes to clip into in the cockpit, and can reach the jack lines from inside the cockpit (this is essential). I can also pee from the stern from the padeye - but just barely (my preference). I have no reason to be walking along the deck in rough weather aft of the front edge of the cockpit, since I can reach the rail easily from the cockpit. In a larger boat, however, the jacklines may need to extend farther back. There may be advantages to longer jack lines, but these work for my needs.