Jacklines (vs jack's line)

[Brion Toss]

Hi,
Simple is good, but it seems that making your jacklines continuous is about as sensible as making all your electrical connections continuous. Vulnerable.
As for configuration, I agree with Ian that, if you must have them on deck, make them well inboard, so it is difficult to fall overboard. Yes, this can make for awkward transitions on installation, but not nearly as awkward as being washed overboard.
My favorite configuration, by the way, is to set up chest-high jacklines, outboard. These need muchshorter tethers, and the jacklines then double as reassuringly high lifelines.
And yeah, don't make these things tight; the loads go up tremendously if you do.
Fair leads,
Brion Toss